TY  - CONF
AU  - Đorđević, Nataša
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Mihajlović, Slavica
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1129
AB  - In order to investigate the possibility of obtaining magnesium titanate, oxides of magnesium
and titanium were mechanochemically activated. Mechanical activation was performed for
1000 min in a high-energy vibro mill (engine power is 0.8 kV). The optimal amount of
powder activated in the mill is 50-100 g, so according to the stoichiometric calculation, the
composition of the starting mixture was 20.2 g (0.5 mol) MgO and 39.9 g (0.5). mol) TiO2.
X-ray diffraction analysis of samples taken from the reaction system was performed after 60,
180, 330 and 1000 min of mechanical activation. Atomic absorption spectrophotometry was
used to analyze the current chemical composition of the system, depending on the time of
activation. Based on the results of X - ray diffraction analysis, it can be concluded that the
greatest changes in the system occurred at the very beginning of mechanical activation due to
disruption of the crystal structure of the initial components. X-ray diffraction analysis of the
sample after 1000 min of activation showed complete amorphization of the mixture, but no
diffraction maxima characteristic of magnesium titanate was identified. Therefore, the
mechanical activation experiments were stopped. The fact is that the invested energy was not
enough to overcome the energy barrier for the formation of a new chemical compound -
magnesium titanate. The inability to synthesize magnesium titanate is explained by the low
negative Gibbs energy value of -25.8 kJ / mol (despite the theoretical possibility that the
reaction will occur), as well as the amount of mechanical energy that entered the system
during activation that is insufficient to obtain the reaction product. Although the synthesis of
MgTiO3 has not been achieved, significant results have been obtained that identify models for
further research into the possibility of mechanochemical reactions of alkaline earth metals and
titanium dioxide.
PB  - Belgrade : Serbian Ceramic Society
C3  - 10th Serbian Ceramic Society Conference „Advanced Ceramics and Application“
T1  - Possibility of obtaining magnesium titanate by mechanochemical process in a high-energy vibro mill
EP  - 94
SP  - 94
ER  - 

@conference{
author = "Đorđević, Nataša and Vlahović, Milica and Martinović, Sanja and Mihajlović, Slavica",
year = "2022",
abstract = "In order to investigate the possibility of obtaining magnesium titanate, oxides of magnesium
and titanium were mechanochemically activated. Mechanical activation was performed for
1000 min in a high-energy vibro mill (engine power is 0.8 kV). The optimal amount of
powder activated in the mill is 50-100 g, so according to the stoichiometric calculation, the
composition of the starting mixture was 20.2 g (0.5 mol) MgO and 39.9 g (0.5). mol) TiO2.
X-ray diffraction analysis of samples taken from the reaction system was performed after 60,
180, 330 and 1000 min of mechanical activation. Atomic absorption spectrophotometry was
used to analyze the current chemical composition of the system, depending on the time of
activation. Based on the results of X - ray diffraction analysis, it can be concluded that the
greatest changes in the system occurred at the very beginning of mechanical activation due to
disruption of the crystal structure of the initial components. X-ray diffraction analysis of the
sample after 1000 min of activation showed complete amorphization of the mixture, but no
diffraction maxima characteristic of magnesium titanate was identified. Therefore, the
mechanical activation experiments were stopped. The fact is that the invested energy was not
enough to overcome the energy barrier for the formation of a new chemical compound -
magnesium titanate. The inability to synthesize magnesium titanate is explained by the low
negative Gibbs energy value of -25.8 kJ / mol (despite the theoretical possibility that the
reaction will occur), as well as the amount of mechanical energy that entered the system
during activation that is insufficient to obtain the reaction product. Although the synthesis of
MgTiO3 has not been achieved, significant results have been obtained that identify models for
further research into the possibility of mechanochemical reactions of alkaline earth metals and
titanium dioxide.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "10th Serbian Ceramic Society Conference „Advanced Ceramics and Application“",
title = "Possibility of obtaining magnesium titanate by mechanochemical process in a high-energy vibro mill",
pages = "94-94"
}

Đorđević, N., Vlahović, M., Martinović, S.,& Mihajlović, S.. (2022). Possibility of obtaining magnesium titanate by mechanochemical process in a high-energy vibro mill. in 10th Serbian Ceramic Society Conference „Advanced Ceramics and Application“
Belgrade : Serbian Ceramic Society., 94-94.

Đorđević N, Vlahović M, Martinović S, Mihajlović S. Possibility of obtaining magnesium titanate by mechanochemical process in a high-energy vibro mill. in 10th Serbian Ceramic Society Conference „Advanced Ceramics and Application“. 2022;:94-94..

Đorđević, Nataša, Vlahović, Milica, Martinović, Sanja, Mihajlović, Slavica, "Possibility of obtaining magnesium titanate by mechanochemical process in a high-energy vibro mill" in 10th Serbian Ceramic Society Conference „Advanced Ceramics and Application“ (2022):94-94.

TY  - CONF
AU  - Đorđević, Nataša
AU  - Mihajlović, Slavica
AU  - Martinović, Sanja
AU  - Vlahović, Milica
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1165
AB  - Ovo istraživanje se bavi termičkom analizom mehanički aktiviranog natrijum karbonata i
promenama do kojih dolazi kako tokom aktivacije sistema, tako i tokom vremena relaksacije
aktiviranog Na2CO3 u kontrolisanim uslovima. Natrijum karbonat je aktiviran 2 i 7 minuta u
vibro mlinu, a zatim su aktivirani uzorci odloženi u atmosferi ugljen dioksida pri vlažnosti od
95 % tokom 96 h. Nakon toga je urađena diferencijalna termalna analiza sa
termogravimetrijom da bi se utvrdile promene do kojih je došlo na aktiviranim uzorcima u
periodu relaksacije. Praćena je promena temperature razlaganja aktiviranih uzoraka Na2CO3
kao i gubitak mase i stepen konverzije Na2CO3 u NaHCO3 u funkciji od vremena aktivacije i
vremena relaksacije. Proučene su i reakcije konverzije natrijum karbonata u natrijum
bikarbonat u prisustvu ugljen dioksida i vlage.
PB  - Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina
C3  - XIII Simpozijum sa međunarodnim učešćem „Rudarstvo 2022“,
T1  - Termalna analiza mehanički aktiviranog natrijum karbonata i njegove fazne promene tokom vremena relaksacije
EP  - 91
SP  - 85
ER  - 

@conference{
author = "Đorđević, Nataša and Mihajlović, Slavica and Martinović, Sanja and Vlahović, Milica",
year = "2022",
abstract = "Ovo istraživanje se bavi termičkom analizom mehanički aktiviranog natrijum karbonata i
promenama do kojih dolazi kako tokom aktivacije sistema, tako i tokom vremena relaksacije
aktiviranog Na2CO3 u kontrolisanim uslovima. Natrijum karbonat je aktiviran 2 i 7 minuta u
vibro mlinu, a zatim su aktivirani uzorci odloženi u atmosferi ugljen dioksida pri vlažnosti od
95 % tokom 96 h. Nakon toga je urađena diferencijalna termalna analiza sa
termogravimetrijom da bi se utvrdile promene do kojih je došlo na aktiviranim uzorcima u
periodu relaksacije. Praćena je promena temperature razlaganja aktiviranih uzoraka Na2CO3
kao i gubitak mase i stepen konverzije Na2CO3 u NaHCO3 u funkciji od vremena aktivacije i
vremena relaksacije. Proučene su i reakcije konverzije natrijum karbonata u natrijum
bikarbonat u prisustvu ugljen dioksida i vlage.",
publisher = "Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina",
journal = "XIII Simpozijum sa međunarodnim učešćem „Rudarstvo 2022“,",
title = "Termalna analiza mehanički aktiviranog natrijum karbonata i njegove fazne promene tokom vremena relaksacije",
pages = "91-85"
}

Đorđević, N., Mihajlović, S., Martinović, S.,& Vlahović, M.. (2022). Termalna analiza mehanički aktiviranog natrijum karbonata i njegove fazne promene tokom vremena relaksacije. in XIII Simpozijum sa međunarodnim učešćem „Rudarstvo 2022“,
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina., 85-91.

Đorđević N, Mihajlović S, Martinović S, Vlahović M. Termalna analiza mehanički aktiviranog natrijum karbonata i njegove fazne promene tokom vremena relaksacije. in XIII Simpozijum sa međunarodnim učešćem „Rudarstvo 2022“,. 2022;:85-91..

Đorđević, Nataša, Mihajlović, Slavica, Martinović, Sanja, Vlahović, Milica, "Termalna analiza mehanički aktiviranog natrijum karbonata i njegove fazne promene tokom vremena relaksacije" in XIII Simpozijum sa međunarodnim učešćem „Rudarstvo 2022“, (2022):85-91.

TY  - JOUR
AU  - Đorđević, Nataša
AU  - Mihajlović, Slavica
AU  - Vlahović, Milica
AU  - Lozanović-Sajić, Jasmina
AU  - Martinović, Sanja
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/635
AB  - Sodium carbonate is a well-known material for being used as a good sorbent of carbon dioxide from the atmosphere, and as such has gained increasing importance in environmental protection. In order to enhance its sorption ability, mechanochemical activation of sodium carbonate was carried out in this study while the occurred changes after the activation and the relaxation time in a controlled environment were monitored. Activation was performed in a vibro-mill from 1 to 28 min. Based on the results of specific surface area, obtained by BET, the samples activated for 2 and 7 min were chosen and placed in a moist carbon dioxide atmosphere for 96 h, a period called the relaxation time. Differential thermal and thermogravimetric analyses were applied with the aim of determining the changes that occurred on the activated samples during the relaxation period. The decomposition temperature change of activated Na2CO3 samples, as well as mass loss and conversion level of Na2CO3 to NaHCO3 were monitored depending on activation and relaxation time periods. The conversion reactions of sodium carbonate to sodium bicarbonate under the specified environment of carbon dioxide and moisture were also studied, and the thermodynamic data such are changes in enthalpy, entropy, and Gibbs energy at the temperature range of 0-160 degrees C are given.
PB  - Elsevier, Amsterdam
T2  - Thermochimica Acta
T1  - Thermal analysis and phase changes of mechanochemically activated sodium carbonate
VL  - 708
DO  - 10.1016/j.tca.2021.179139
UR  - conv_931
ER  - 

@article{
author = "Đorđević, Nataša and Mihajlović, Slavica and Vlahović, Milica and Lozanović-Sajić, Jasmina and Martinović, Sanja",
year = "2022",
abstract = "Sodium carbonate is a well-known material for being used as a good sorbent of carbon dioxide from the atmosphere, and as such has gained increasing importance in environmental protection. In order to enhance its sorption ability, mechanochemical activation of sodium carbonate was carried out in this study while the occurred changes after the activation and the relaxation time in a controlled environment were monitored. Activation was performed in a vibro-mill from 1 to 28 min. Based on the results of specific surface area, obtained by BET, the samples activated for 2 and 7 min were chosen and placed in a moist carbon dioxide atmosphere for 96 h, a period called the relaxation time. Differential thermal and thermogravimetric analyses were applied with the aim of determining the changes that occurred on the activated samples during the relaxation period. The decomposition temperature change of activated Na2CO3 samples, as well as mass loss and conversion level of Na2CO3 to NaHCO3 were monitored depending on activation and relaxation time periods. The conversion reactions of sodium carbonate to sodium bicarbonate under the specified environment of carbon dioxide and moisture were also studied, and the thermodynamic data such are changes in enthalpy, entropy, and Gibbs energy at the temperature range of 0-160 degrees C are given.",
publisher = "Elsevier, Amsterdam",
journal = "Thermochimica Acta",
title = "Thermal analysis and phase changes of mechanochemically activated sodium carbonate",
volume = "708",
doi = "10.1016/j.tca.2021.179139",
url = "conv_931"
}

Đorđević, N., Mihajlović, S., Vlahović, M., Lozanović-Sajić, J.,& Martinović, S.. (2022). Thermal analysis and phase changes of mechanochemically activated sodium carbonate. in Thermochimica Acta
Elsevier, Amsterdam., 708.
https://doi.org/10.1016/j.tca.2021.179139
conv_931

Đorđević N, Mihajlović S, Vlahović M, Lozanović-Sajić J, Martinović S. Thermal analysis and phase changes of mechanochemically activated sodium carbonate. in Thermochimica Acta. 2022;708.
doi:10.1016/j.tca.2021.179139
conv_931 .

Đorđević, Nataša, Mihajlović, Slavica, Vlahović, Milica, Lozanović-Sajić, Jasmina, Martinović, Sanja, "Thermal analysis and phase changes of mechanochemically activated sodium carbonate" in Thermochimica Acta, 708 (2022),
https://doi.org/10.1016/j.tca.2021.179139 .,
conv_931 .

TY  - CONF
AU  - Đorđević, Nataša
AU  - Peleš, Adriana
AU  - Obradović, Nina
AU  - Vlahović, Milica
AU  - Mihajlović, Slavica
AU  - Martinović, Sanja
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1136
AB  - The mechanical activation of the starting mixtures of cordierite (2MgO*2Al2O3*5SiO2) with
5.00 mass % TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction
pressure before the sintering process was 2t/cm2. The sintering process was performed at 1350°C
for 2h and 4h in air atmosphere. Scanning electron microscopy was performed to analyze the microstructure
of both compacted and sintered samples. Atomic force microscope was used to investigate
the surface of the sintered samples. This paper investigates the influence of prolonged sintering time
on the densities of the sintered samples, along with electrical properties.
PB  - Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources
PB  - Belgrade : Society for Renewable Electrical Power Sources
C3  - 9th International Conference on Renewable Electrical Power Sources
T1  - Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics
EP  - 268
SP  - 265
ER  - 

@conference{
author = "Đorđević, Nataša and Peleš, Adriana and Obradović, Nina and Vlahović, Milica and Mihajlović, Slavica and Martinović, Sanja",
year = "2021",
abstract = "The mechanical activation of the starting mixtures of cordierite (2MgO*2Al2O3*5SiO2) with
5.00 mass % TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction
pressure before the sintering process was 2t/cm2. The sintering process was performed at 1350°C
for 2h and 4h in air atmosphere. Scanning electron microscopy was performed to analyze the microstructure
of both compacted and sintered samples. Atomic force microscope was used to investigate
the surface of the sintered samples. This paper investigates the influence of prolonged sintering time
on the densities of the sintered samples, along with electrical properties.",
publisher = "Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources, Belgrade : Society for Renewable Electrical Power Sources",
journal = "9th International Conference on Renewable Electrical Power Sources",
title = "Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics",
pages = "268-265"
}

Đorđević, N., Peleš, A., Obradović, N., Vlahović, M., Mihajlović, S.,& Martinović, S.. (2021). Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics. in 9th International Conference on Renewable Electrical Power Sources
Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources., 265-268.

Đorđević N, Peleš A, Obradović N, Vlahović M, Mihajlović S, Martinović S. Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics. in 9th International Conference on Renewable Electrical Power Sources. 2021;:265-268..

Đorđević, Nataša, Peleš, Adriana, Obradović, Nina, Vlahović, Milica, Mihajlović, Slavica, Martinović, Sanja, "Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics" in 9th International Conference on Renewable Electrical Power Sources (2021):265-268.

TY  - PAT
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Volkov Husović, Tatjana
AU  - Savić, Aleksandar
AU  - Milićević, Sonja
AU  - Jovanović, Vladimir
AU  - Đorđević, Nataša
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1089
AB  - Postupak implementacije apsorbovanih teških metala, posebno bakra, iz kiselih rudničkih voda procesom stabilizacije/solidifikacije u ekološki prihvatljiv i primenjiv građevinski materijal bezbedan za životnu sredinu, dobija se tako što se u jednom reakcionom sudu zagreva 33 mass % elementarnog sumpora koji je nus-proizvod procesa rafinerije nafte i modifikovanog sumpora diciklopentadienom, na temperaturu od 132°-141 ºC (tako da je njihov maseni odnos 98,2% sumpora i 1,8% modifikovanog sumpora). U drugom reakcionom sudu u količini od 56 mass % zagreva agregat na temperaturu do 160 ºC, a njemu se dodaje 5 mass % letećeg pepela iz termoelektrane kao filera. Ovoj smesi se dodaje 6 mass % peleta letećeg pepela na kojima je izvršena apsorpcija teških metala, posebno bakra iz rudničkih voda, tako što se sve komponente homogenizuju tokom 2 do 5 minuta, a dobijena smesa izliva u kalupe prethodno zagrejane na 120 ºC i vibrira 10 sekundi. Površina ovako dobijene sumpor-polimerne betonske mešavine se  izravna i ostavi da očvrsne u kalupu na sobnoj temperaturi, a dobijeni sumpor-polimerni beton očvrsne u vremenskom intervalu od 15 minuta do nekoliko časova u zavisnosti od veličine i oblika uzorka. Nakon 3 časa očvršćavanja uzorci se izvade iz kalupa i neguju na sobnoj temperaturi od 20 ºC tokom 24 časa, pri čemu oblik kalupa zavisi od potreba potrošača. Ovim postupkom i upotrebom otpadnog materijala iz rudničkih voda, letećeg pepela i elementarnog sumpora se ne stvaraju deponije otpadnog materijala već se korisno i ekološki prihvatljivo koristi kao građevinski materijal.
PB  - Beograd : Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju
T2  - Zavod za intelektualnu svojinu
T1  - Postupak solidifikacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na paletama letećeg pepela u ekološki prihvatljiv građevinski materijal
ER  - 

@misc{
author = "Martinović, Sanja and Vlahović, Milica and Volkov Husović, Tatjana and Savić, Aleksandar and Milićević, Sonja and Jovanović, Vladimir and Đorđević, Nataša",
year = "2021",
abstract = "Postupak implementacije apsorbovanih teških metala, posebno bakra, iz kiselih rudničkih voda procesom stabilizacije/solidifikacije u ekološki prihvatljiv i primenjiv građevinski materijal bezbedan za životnu sredinu, dobija se tako što se u jednom reakcionom sudu zagreva 33 mass % elementarnog sumpora koji je nus-proizvod procesa rafinerije nafte i modifikovanog sumpora diciklopentadienom, na temperaturu od 132°-141 ºC (tako da je njihov maseni odnos 98,2% sumpora i 1,8% modifikovanog sumpora). U drugom reakcionom sudu u količini od 56 mass % zagreva agregat na temperaturu do 160 ºC, a njemu se dodaje 5 mass % letećeg pepela iz termoelektrane kao filera. Ovoj smesi se dodaje 6 mass % peleta letećeg pepela na kojima je izvršena apsorpcija teških metala, posebno bakra iz rudničkih voda, tako što se sve komponente homogenizuju tokom 2 do 5 minuta, a dobijena smesa izliva u kalupe prethodno zagrejane na 120 ºC i vibrira 10 sekundi. Površina ovako dobijene sumpor-polimerne betonske mešavine se  izravna i ostavi da očvrsne u kalupu na sobnoj temperaturi, a dobijeni sumpor-polimerni beton očvrsne u vremenskom intervalu od 15 minuta do nekoliko časova u zavisnosti od veličine i oblika uzorka. Nakon 3 časa očvršćavanja uzorci se izvade iz kalupa i neguju na sobnoj temperaturi od 20 ºC tokom 24 časa, pri čemu oblik kalupa zavisi od potreba potrošača. Ovim postupkom i upotrebom otpadnog materijala iz rudničkih voda, letećeg pepela i elementarnog sumpora se ne stvaraju deponije otpadnog materijala već se korisno i ekološki prihvatljivo koristi kao građevinski materijal.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju",
journal = "Zavod za intelektualnu svojinu",
title = "Postupak solidifikacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na paletama letećeg pepela u ekološki prihvatljiv građevinski materijal"
}

Martinović, S., Vlahović, M., Volkov Husović, T., Savić, A., Milićević, S., Jovanović, V.,& Đorđević, N.. (2021). Postupak solidifikacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na paletama letećeg pepela u ekološki prihvatljiv građevinski materijal. in Zavod za intelektualnu svojinu
Beograd : Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju..

Martinović S, Vlahović M, Volkov Husović T, Savić A, Milićević S, Jovanović V, Đorđević N. Postupak solidifikacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na paletama letećeg pepela u ekološki prihvatljiv građevinski materijal. in Zavod za intelektualnu svojinu. 2021;..

Martinović, Sanja, Vlahović, Milica, Volkov Husović, Tatjana, Savić, Aleksandar, Milićević, Sonja, Jovanović, Vladimir, Đorđević, Nataša, "Postupak solidifikacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na paletama letećeg pepela u ekološki prihvatljiv građevinski materijal" in Zavod za intelektualnu svojinu (2021).

TY  - CONF
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Milićević, Sonja
AU  - Đorđević, Nataša
AU  - Vlahović, Miljan
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1163
AB  - Bakar je jedan od najzastupljenijih metala u industriji zbog svoje najšire primene u poređenju sa ostalim obojenim metalima. Tokom procesa eksploatacije bakra stvara se velika količina rudničkih otpadnih voda. Zbog toga postoji sve veće interesovanje za rešavanje ekoloških pitanja industrije rudnika bakra. Hemijski sastav rudničkih otpadnih voda je složen i zavisi od hemijskog sastava rude koja se izlužuje tokom eksploatacije. Leteći pepeo je vrsta industrijskog otpada koji može da izazove višestruke ekološke probleme. S druge strane, zbog velike poroznosti i specifične površine, kao i drugih jedinstvenih karakteristika, leteći pepeo se takođe može koristiti kao jeftin i visoko efikasan adsorbens za prečišćavanje rudničkih otpadnih voda. U ovom radu leteći pepeo iz termoelektrane bez prethodnog tretmana i peletiziran korišćen je za sorpciju bakra iz otpadne vode. Rezultati su pokazali da je leteći pepeo efikasan sorbent bakra pri čemu su pelete imale tri puta veći adsorpcioni kapacitet u odnosu na mikronizirani pepeo.
AB  - Copper is one of the most present industrial metals due to its wide application compared to other non-ferrous metals. During the mining process of copper exploitation, large amount of mine waste water is generated. Therefore, there is a growing interest in solving the environmental issues of the copper mine industry. The chemical composition of these mine waste waters is complex and depends on the chemical composition of the ore that leaches during the exploitation. Fly ash is a type of industrial waste that can cause multiple environmental problems. On the other hand, owing to its high porosity, large specific surface area, and other unique characteristics, fly ash can also be used as a low-cost and high efficient adsorbent for treatment of mine waste waters. In this paper, fly ash from a thermal power plant without prior treatment and pelletized was used for sorption of copper from wastewater. The results showed that fly ash was an efficient copper sorbent, whereby the pellets had three times higher adsorption capacity compared to micronized fly ash.
PB  - Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina
C3  - XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“
T1  - Treatment of mine wastewater by adsorption on fly ash
EP  - 83
SP  - 75
ER  - 

@conference{
author = "Vlahović, Milica and Martinović, Sanja and Milićević, Sonja and Đorđević, Nataša and Vlahović, Miljan",
year = "2021",
abstract = "Bakar je jedan od najzastupljenijih metala u industriji zbog svoje najšire primene u poređenju sa ostalim obojenim metalima. Tokom procesa eksploatacije bakra stvara se velika količina rudničkih otpadnih voda. Zbog toga postoji sve veće interesovanje za rešavanje ekoloških pitanja industrije rudnika bakra. Hemijski sastav rudničkih otpadnih voda je složen i zavisi od hemijskog sastava rude koja se izlužuje tokom eksploatacije. Leteći pepeo je vrsta industrijskog otpada koji može da izazove višestruke ekološke probleme. S druge strane, zbog velike poroznosti i specifične površine, kao i drugih jedinstvenih karakteristika, leteći pepeo se takođe može koristiti kao jeftin i visoko efikasan adsorbens za prečišćavanje rudničkih otpadnih voda. U ovom radu leteći pepeo iz termoelektrane bez prethodnog tretmana i peletiziran korišćen je za sorpciju bakra iz otpadne vode. Rezultati su pokazali da je leteći pepeo efikasan sorbent bakra pri čemu su pelete imale tri puta veći adsorpcioni kapacitet u odnosu na mikronizirani pepeo., Copper is one of the most present industrial metals due to its wide application compared to other non-ferrous metals. During the mining process of copper exploitation, large amount of mine waste water is generated. Therefore, there is a growing interest in solving the environmental issues of the copper mine industry. The chemical composition of these mine waste waters is complex and depends on the chemical composition of the ore that leaches during the exploitation. Fly ash is a type of industrial waste that can cause multiple environmental problems. On the other hand, owing to its high porosity, large specific surface area, and other unique characteristics, fly ash can also be used as a low-cost and high efficient adsorbent for treatment of mine waste waters. In this paper, fly ash from a thermal power plant without prior treatment and pelletized was used for sorption of copper from wastewater. The results showed that fly ash was an efficient copper sorbent, whereby the pellets had three times higher adsorption capacity compared to micronized fly ash.",
publisher = "Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina",
journal = "XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“",
title = "Treatment of mine wastewater by adsorption on fly ash",
pages = "83-75"
}

Vlahović, M., Martinović, S., Milićević, S., Đorđević, N.,& Vlahović, M.. (2021). Treatment of mine wastewater by adsorption on fly ash. in XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina., 75-83.

Vlahović M, Martinović S, Milićević S, Đorđević N, Vlahović M. Treatment of mine wastewater by adsorption on fly ash. in XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“. 2021;:75-83..

Vlahović, Milica, Martinović, Sanja, Milićević, Sonja, Đorđević, Nataša, Vlahović, Miljan, "Treatment of mine wastewater by adsorption on fly ash" in XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“ (2021):75-83.

TY  - CONF
AU  - Đorđević, Nataša
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Mihajlović, Slavica
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/818
AB  - During mechanical activation, the energy of treated material is raised to a higher level that
can lead to the chemical transformation of the activated material. This is the point that should
be considered as a phenomenon of the mechanochemical transformations appearing as a
result of mechanical activation. Sodium carbonate as a substance that is often subjected to
mechanochemical synthesis was mechanically activated in this study.Sodium carbonate is
also a well-known material for being used as a good sorbent of carbon dioxide from the
atmosphere, and as such has gained increasing importance in environmental protection. The
conversion reactions of sodium carbonate to sodium bicarbonate under the specified
environment of carbon dioxide and moisture were studied, and the thermodynamic data such
are changes in enthalpy, entropy, and Gibbs energy at the temperature range of 0-160 ° C are
given.
PB  - Belgrade : Serbian Ceramic Society
C3  - The Nineth Serbian Ceramic Society Conference „Advanced Ceramics and Application
T1  - Thermodynamic Data Analysis of Sodium Carbonate to Bicarbonate Conversion Reaction
EP  - 82
SP  - 82
ER  - 

@conference{
author = "Đorđević, Nataša and Martinović, Sanja and Vlahović, Milica and Mihajlović, Slavica",
year = "2021",
abstract = "During mechanical activation, the energy of treated material is raised to a higher level that
can lead to the chemical transformation of the activated material. This is the point that should
be considered as a phenomenon of the mechanochemical transformations appearing as a
result of mechanical activation. Sodium carbonate as a substance that is often subjected to
mechanochemical synthesis was mechanically activated in this study.Sodium carbonate is
also a well-known material for being used as a good sorbent of carbon dioxide from the
atmosphere, and as such has gained increasing importance in environmental protection. The
conversion reactions of sodium carbonate to sodium bicarbonate under the specified
environment of carbon dioxide and moisture were studied, and the thermodynamic data such
are changes in enthalpy, entropy, and Gibbs energy at the temperature range of 0-160 ° C are
given.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "The Nineth Serbian Ceramic Society Conference „Advanced Ceramics and Application",
title = "Thermodynamic Data Analysis of Sodium Carbonate to Bicarbonate Conversion Reaction",
pages = "82-82"
}

Đorđević, N., Martinović, S., Vlahović, M.,& Mihajlović, S.. (2021). Thermodynamic Data Analysis of Sodium Carbonate to Bicarbonate Conversion Reaction. in The Nineth Serbian Ceramic Society Conference „Advanced Ceramics and Application
Belgrade : Serbian Ceramic Society., 82-82.

Đorđević N, Martinović S, Vlahović M, Mihajlović S. Thermodynamic Data Analysis of Sodium Carbonate to Bicarbonate Conversion Reaction. in The Nineth Serbian Ceramic Society Conference „Advanced Ceramics and Application. 2021;:82-82..

Đorđević, Nataša, Martinović, Sanja, Vlahović, Milica, Mihajlović, Slavica, "Thermodynamic Data Analysis of Sodium Carbonate to Bicarbonate Conversion Reaction" in The Nineth Serbian Ceramic Society Conference „Advanced Ceramics and Application (2021):82-82.

TY  - CONF
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Đorđević, Nataša
AU  - Volkov Husović, Tatjana
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/815
AB  - Among the variety of advanced materials with exceptional properties and applications, shape
memory alloys (SMAs) have a unique ability to return to previously defined shapes or sizes if subjected
to the relevant thermal treatment. The memory effect can be reached only in the presence of
specific phase transformation, reversible austenite to the martensite phase. There are several basic
types of SMAs, such as Ni-Ti (nitinol), Cu-based, and Fe-based alloys. The economic effect (low
price) is the main advantage of Cu-based SMAs compared with other SMAs. Namely, these Cu-Al-Ni
alloys can be applied in various industrial fields, especially when high transformation temperatures
are required (near 200 °C), thanks to their excellent thermal stability and high transformation temperatures.
AB  - Među mnogim naprednim materijalima sa izuzetnim svojstvima i primenom, legure sa memorijom
oblika (SMA) imaju jedinstvenu sposobnost da se vrate prethodno definisanim oblicima ili
veličinama ako su podvrgnute odgovarajućoj termičkoj obradi. Memorijski efekat se može postići
samo u prisustvu specifične fazne transformacije, reverzibilnog prelaza iz austenita u martenzit. Postoji
nekoliko osnovnih tipova SMA, kao što su Ni-Ti (nitinol), legure na bazi Cu i legure na bazi Fe.
Ekonomski efekat (niska cena) je glavna prednost SMA na bazi Cu u poređenju sa drugim SMA.
Naime, ove Cu-Al-Ni legure mogu se primeniti u različitim industrijskim poljima, posebno kada su
potrebne visoke temperature transformacije (blizu 200 ° C), zahvaljujući njihovoj odličnoj termičkoj
stabilnosti i visokim temperaturama transformacije.
PB  - Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) and Society for Renewable Electrical Power Sources
C3  - 9th International Conference on Renewable Electrical Power Sources
T1  - Manufacture and characteristics of shape memory alloys for electronic purposes
EP  - 63
SP  - 55
ER  - 

@conference{
author = "Vlahović, Milica and Martinović, Sanja and Đorđević, Nataša and Volkov Husović, Tatjana",
year = "2021",
abstract = "Among the variety of advanced materials with exceptional properties and applications, shape
memory alloys (SMAs) have a unique ability to return to previously defined shapes or sizes if subjected
to the relevant thermal treatment. The memory effect can be reached only in the presence of
specific phase transformation, reversible austenite to the martensite phase. There are several basic
types of SMAs, such as Ni-Ti (nitinol), Cu-based, and Fe-based alloys. The economic effect (low
price) is the main advantage of Cu-based SMAs compared with other SMAs. Namely, these Cu-Al-Ni
alloys can be applied in various industrial fields, especially when high transformation temperatures
are required (near 200 °C), thanks to their excellent thermal stability and high transformation temperatures., Među mnogim naprednim materijalima sa izuzetnim svojstvima i primenom, legure sa memorijom
oblika (SMA) imaju jedinstvenu sposobnost da se vrate prethodno definisanim oblicima ili
veličinama ako su podvrgnute odgovarajućoj termičkoj obradi. Memorijski efekat se može postići
samo u prisustvu specifične fazne transformacije, reverzibilnog prelaza iz austenita u martenzit. Postoji
nekoliko osnovnih tipova SMA, kao što su Ni-Ti (nitinol), legure na bazi Cu i legure na bazi Fe.
Ekonomski efekat (niska cena) je glavna prednost SMA na bazi Cu u poređenju sa drugim SMA.
Naime, ove Cu-Al-Ni legure mogu se primeniti u različitim industrijskim poljima, posebno kada su
potrebne visoke temperature transformacije (blizu 200 ° C), zahvaljujući njihovoj odličnoj termičkoj
stabilnosti i visokim temperaturama transformacije.",
publisher = "Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) and Society for Renewable Electrical Power Sources",
journal = "9th International Conference on Renewable Electrical Power Sources",
title = "Manufacture and characteristics of shape memory alloys for electronic purposes",
pages = "63-55"
}

Vlahović, M., Martinović, S., Đorđević, N.,& Volkov Husović, T.. (2021). Manufacture and characteristics of shape memory alloys for electronic purposes. in 9th International Conference on Renewable Electrical Power Sources
Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) and Society for Renewable Electrical Power Sources., 55-63.

Vlahović M, Martinović S, Đorđević N, Volkov Husović T. Manufacture and characteristics of shape memory alloys for electronic purposes. in 9th International Conference on Renewable Electrical Power Sources. 2021;:55-63..

Vlahović, Milica, Martinović, Sanja, Đorđević, Nataša, Volkov Husović, Tatjana, "Manufacture and characteristics of shape memory alloys for electronic purposes" in 9th International Conference on Renewable Electrical Power Sources (2021):55-63.

TY  - JOUR
AU  - Đorđević, Nataša
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Bugarčić, Mladen
AU  - Mihajlović, Slavica
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/605
AB  - Secondary sulfur obtained as a by-product in the oil refining process is a major problem as an environmental pollutant. One of the possibilities of environmental protection is the use of sulfur obtained in this way as a component of sulfur concrete. Mixing of sulfur with suitable additives can provide longer working lifetime of sulfur concrete, as well as maintenance of the former physical, chemical, and mechanical properties of concrete. Such mixtures are usually called modified sulfur or sulfur cement. Secondary sulfur produced in the oil refining process by the Klaus process (approval of crude oil) cannot be used in this form. In order to be ready for the use of sulfur concrete and asphalt, it is necessary to modify elemental sulfur from cyclic to chain form, obtaining of modified sulfur whose application is as a binding agent in a concrete instead of portland cement is described in this paper. Influence of dicyclopentadien, an organic additive, on sulfur modification has been studied in this research. Microstructure and mineral analysis of modified and unmodified sulfur cement binding are performed using polarized and scanning electron microscopes and X-ray diffraction spectrometer.
PB  - Univerzitet u Beogradu - Rudarsko-geološki fakultet, Beograd
T2  - Podzemni radovi
T1  - X-ray diffraction and SEM analysis of waste sulfur modification for use in concretes
EP  - 65
IS  - 38
SP  - 57
DO  - 10.5937/podrad2138057Q
UR  - conv_234
ER  - 

@article{
author = "Đorđević, Nataša and Vlahović, Milica and Martinović, Sanja and Bugarčić, Mladen and Mihajlović, Slavica",
year = "2021",
abstract = "Secondary sulfur obtained as a by-product in the oil refining process is a major problem as an environmental pollutant. One of the possibilities of environmental protection is the use of sulfur obtained in this way as a component of sulfur concrete. Mixing of sulfur with suitable additives can provide longer working lifetime of sulfur concrete, as well as maintenance of the former physical, chemical, and mechanical properties of concrete. Such mixtures are usually called modified sulfur or sulfur cement. Secondary sulfur produced in the oil refining process by the Klaus process (approval of crude oil) cannot be used in this form. In order to be ready for the use of sulfur concrete and asphalt, it is necessary to modify elemental sulfur from cyclic to chain form, obtaining of modified sulfur whose application is as a binding agent in a concrete instead of portland cement is described in this paper. Influence of dicyclopentadien, an organic additive, on sulfur modification has been studied in this research. Microstructure and mineral analysis of modified and unmodified sulfur cement binding are performed using polarized and scanning electron microscopes and X-ray diffraction spectrometer.",
publisher = "Univerzitet u Beogradu - Rudarsko-geološki fakultet, Beograd",
journal = "Podzemni radovi",
title = "X-ray diffraction and SEM analysis of waste sulfur modification for use in concretes",
pages = "65-57",
number = "38",
doi = "10.5937/podrad2138057Q",
url = "conv_234"
}

Đorđević, N., Vlahović, M., Martinović, S., Bugarčić, M.,& Mihajlović, S.. (2021). X-ray diffraction and SEM analysis of waste sulfur modification for use in concretes. in Podzemni radovi
Univerzitet u Beogradu - Rudarsko-geološki fakultet, Beograd.(38), 57-65.
https://doi.org/10.5937/podrad2138057Q
conv_234

Đorđević N, Vlahović M, Martinović S, Bugarčić M, Mihajlović S. X-ray diffraction and SEM analysis of waste sulfur modification for use in concretes. in Podzemni radovi. 2021;(38):57-65.
doi:10.5937/podrad2138057Q
conv_234 .

Đorđević, Nataša, Vlahović, Milica, Martinović, Sanja, Bugarčić, Mladen, Mihajlović, Slavica, "X-ray diffraction and SEM analysis of waste sulfur modification for use in concretes" in Podzemni radovi, no. 38 (2021):57-65,
https://doi.org/10.5937/podrad2138057Q .,
conv_234 .

TY  - JOUR
AU  - Đorđević, Nataša
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Mihajlović, Slavica
AU  - Vušović, Nenad M.
AU  - Sokić, Miroslav
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/566
AB  - In this study, a mixture of magnesium oxide and titanium dioxide was mechanically activated in order to investigate the possibility of mechanochemical synthesis of magnesium titanate. Mechanical activation was performed for 1000 min in a high-energy vibro mill (type MH954/3, KHD Humboldt Wedag AG, Germany). The mill is equipped with housing having a horizontally placed shutter. The cylindrical stainless steel working vessel, with inner dimensions of 40 mm in height and 170 mm in diameter, has working elements consisting of two free concentric stainless steel rings with a total weight of 3 kg. The engine power is 0.8 kW. Respecting the optimal amount of powder to be activated of 50-150 g and the stoichiometric ratio of the reactants in the equation presenting the chemical reaction of magnesium titanate synthesis, the starting amounts were 20.2 g (0.5 mol) of MgO and 39.9 g (0.5 mol) TiO2. During the experiments, X-ray diffraction analysis of the samples taken from the reaction system after 60, 180, 330, and 1000 min of mechanical activation was performed. Atomic absorption spectrophotometry was used for chemical composition analysis of samples taken at different activation times. Based on the X-ray diffraction analysis results, it can be concluded that the greatest changes in the system took place at the very beginning of the mechanical activation due to the disturbance of the crystal structure of the initial components. X-ray diffraction analysis of the sample after 1000 min of activation showed complete amorphization of the mixture, but diffraction maxima characteristic for magnesium titanate were not identified. Therefore, the mechanical activation experiments were stopped. Evidently, the energy input was not sufficient to overcome the energy barrier to form a new chemical compound - magnesium titanate. The failure to synthesize magnesium titanate is explained by the low negative Gibbs energy value of -25.8 kJ/mol (despite the theoretical possibility that the reaction will happen), as well as by the amount of mechanical energy entered into the system during activation which was insufficient to obtain the reaction product. Although the synthesis of MgTiO3 was not achieved, significant results were obtained which identify models for further investigations of the possibility of mechanochemical reactions of alkaline earth metals and titanium dioxide.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Investigation of the impact of mechanical activation on synthesis of the MgO-TiO2 system
EP  - 225
IS  - 4
SP  - 213
VL  - 75
DO  - 10.2298/HEMIND210402022D
UR  - conv_915
ER  - 

@article{
author = "Đorđević, Nataša and Vlahović, Milica and Martinović, Sanja and Mihajlović, Slavica and Vušović, Nenad M. and Sokić, Miroslav",
year = "2021",
abstract = "In this study, a mixture of magnesium oxide and titanium dioxide was mechanically activated in order to investigate the possibility of mechanochemical synthesis of magnesium titanate. Mechanical activation was performed for 1000 min in a high-energy vibro mill (type MH954/3, KHD Humboldt Wedag AG, Germany). The mill is equipped with housing having a horizontally placed shutter. The cylindrical stainless steel working vessel, with inner dimensions of 40 mm in height and 170 mm in diameter, has working elements consisting of two free concentric stainless steel rings with a total weight of 3 kg. The engine power is 0.8 kW. Respecting the optimal amount of powder to be activated of 50-150 g and the stoichiometric ratio of the reactants in the equation presenting the chemical reaction of magnesium titanate synthesis, the starting amounts were 20.2 g (0.5 mol) of MgO and 39.9 g (0.5 mol) TiO2. During the experiments, X-ray diffraction analysis of the samples taken from the reaction system after 60, 180, 330, and 1000 min of mechanical activation was performed. Atomic absorption spectrophotometry was used for chemical composition analysis of samples taken at different activation times. Based on the X-ray diffraction analysis results, it can be concluded that the greatest changes in the system took place at the very beginning of the mechanical activation due to the disturbance of the crystal structure of the initial components. X-ray diffraction analysis of the sample after 1000 min of activation showed complete amorphization of the mixture, but diffraction maxima characteristic for magnesium titanate were not identified. Therefore, the mechanical activation experiments were stopped. Evidently, the energy input was not sufficient to overcome the energy barrier to form a new chemical compound - magnesium titanate. The failure to synthesize magnesium titanate is explained by the low negative Gibbs energy value of -25.8 kJ/mol (despite the theoretical possibility that the reaction will happen), as well as by the amount of mechanical energy entered into the system during activation which was insufficient to obtain the reaction product. Although the synthesis of MgTiO3 was not achieved, significant results were obtained which identify models for further investigations of the possibility of mechanochemical reactions of alkaline earth metals and titanium dioxide.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Investigation of the impact of mechanical activation on synthesis of the MgO-TiO2 system",
pages = "225-213",
number = "4",
volume = "75",
doi = "10.2298/HEMIND210402022D",
url = "conv_915"
}

Đorđević, N., Vlahović, M., Martinović, S., Mihajlović, S., Vušović, N. M.,& Sokić, M.. (2021). Investigation of the impact of mechanical activation on synthesis of the MgO-TiO2 system. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 75(4), 213-225.
https://doi.org/10.2298/HEMIND210402022D
conv_915

Đorđević N, Vlahović M, Martinović S, Mihajlović S, Vušović NM, Sokić M. Investigation of the impact of mechanical activation on synthesis of the MgO-TiO2 system. in Hemijska industrija. 2021;75(4):213-225.
doi:10.2298/HEMIND210402022D
conv_915 .

Đorđević, Nataša, Vlahović, Milica, Martinović, Sanja, Mihajlović, Slavica, Vušović, Nenad M., Sokić, Miroslav, "Investigation of the impact of mechanical activation on synthesis of the MgO-TiO2 system" in Hemijska industrija, 75, no. 4 (2021):213-225,
https://doi.org/10.2298/HEMIND210402022D .,
conv_915 .

TY  - CONF
AU  - Đorđević, Nataša
AU  - Vlahović, Milica
AU  - Mihajlović, Slavica
AU  - Martinović, Sanja
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/811
AB  - The properties of cordierite, 2MgO·2Al2O3·5SiO2, makes this ceramics nowadays an attractive
material, which can be used for various applications in electronics. As the sintering temperature of
cordierite is very high (1375 °C), any decrease in the temperature at which cordierite is formed leads
to economic benefits. Therefore, in this study, the mechanochemical activation of the initial components
mixture for the synthesis of cordierite was applied with the aim to lower its sintering temperature.
The effects of mechanochemical activation on the cordierite mixture were investigated. Changes
in the specific surface area of the activated components were determined by the BET method. The TG
method and mass loss were used to monitor the temperature- induced changes in the analyzed threecomponent
system. Based on the obtained results, increase in specific surface area and weight loss
with increasing activation time, a decrease in cordierite sintering temperature is expected.
AB  - Kordijerit, 2MgO·2Al2O3·5SiO2, zbog svojih svojstava predstavlja izuzetno atraktivan
keramički materijal koji se može primeniti u elektronici za različite namene. Kako je temperatura
sinterovanja kordijerita veoma visoka (1375 °C), svako sniženje temperature na kojoj se formira
kordijerit donosi ekonomski benefit. Zbog toga je u ovom radu primenjena metoda mehanohemijske
aktivacije smeše polaznih komponenti za sintezu kordijerita sa ciljem sniženja njegove temperature
sinterovanja. Ispitivani su efekti mehanohemijske aktivacije na kordijeritnu smešu. Povećanje
specifične površine aktiviranih polaznih komponenti je praćeno BET metodom. TG metoda i gubitak
mase primenjeni su za praćenje promena uslovljenih temperaturom u analiziranom trokomponentnom
sistemu. Na osnovu dobijenih rezultata, povećanja specifične površine i gubitka mase sa povećanjem
vremena aktivacije, očekuje se sniženje temperature sinterovanja kordijerita.
PB  - Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) and  Society for Renewable Electrical Power Sources
C3  - 8th International Conference on Renewable Electrical Power Sources
T1  - Influence of mechanochemical activation on components on synthesis of cordierite ceramics for application in electronics
EP  - 55
SP  - 51
ER  - 

@conference{
author = "Đorđević, Nataša and Vlahović, Milica and Mihajlović, Slavica and Martinović, Sanja",
year = "2020",
abstract = "The properties of cordierite, 2MgO·2Al2O3·5SiO2, makes this ceramics nowadays an attractive
material, which can be used for various applications in electronics. As the sintering temperature of
cordierite is very high (1375 °C), any decrease in the temperature at which cordierite is formed leads
to economic benefits. Therefore, in this study, the mechanochemical activation of the initial components
mixture for the synthesis of cordierite was applied with the aim to lower its sintering temperature.
The effects of mechanochemical activation on the cordierite mixture were investigated. Changes
in the specific surface area of the activated components were determined by the BET method. The TG
method and mass loss were used to monitor the temperature- induced changes in the analyzed threecomponent
system. Based on the obtained results, increase in specific surface area and weight loss
with increasing activation time, a decrease in cordierite sintering temperature is expected., Kordijerit, 2MgO·2Al2O3·5SiO2, zbog svojih svojstava predstavlja izuzetno atraktivan
keramički materijal koji se može primeniti u elektronici za različite namene. Kako je temperatura
sinterovanja kordijerita veoma visoka (1375 °C), svako sniženje temperature na kojoj se formira
kordijerit donosi ekonomski benefit. Zbog toga je u ovom radu primenjena metoda mehanohemijske
aktivacije smeše polaznih komponenti za sintezu kordijerita sa ciljem sniženja njegove temperature
sinterovanja. Ispitivani su efekti mehanohemijske aktivacije na kordijeritnu smešu. Povećanje
specifične površine aktiviranih polaznih komponenti je praćeno BET metodom. TG metoda i gubitak
mase primenjeni su za praćenje promena uslovljenih temperaturom u analiziranom trokomponentnom
sistemu. Na osnovu dobijenih rezultata, povećanja specifične površine i gubitka mase sa povećanjem
vremena aktivacije, očekuje se sniženje temperature sinterovanja kordijerita.",
publisher = "Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) and  Society for Renewable Electrical Power Sources",
journal = "8th International Conference on Renewable Electrical Power Sources",
title = "Influence of mechanochemical activation on components on synthesis of cordierite ceramics for application in electronics",
pages = "55-51"
}

Đorđević, N., Vlahović, M., Mihajlović, S.,& Martinović, S.. (2020). Influence of mechanochemical activation on components on synthesis of cordierite ceramics for application in electronics. in 8th International Conference on Renewable Electrical Power Sources
Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) and  Society for Renewable Electrical Power Sources., 51-55.

Đorđević N, Vlahović M, Mihajlović S, Martinović S. Influence of mechanochemical activation on components on synthesis of cordierite ceramics for application in electronics. in 8th International Conference on Renewable Electrical Power Sources. 2020;:51-55..

Đorđević, Nataša, Vlahović, Milica, Mihajlović, Slavica, Martinović, Sanja, "Influence of mechanochemical activation on components on synthesis of cordierite ceramics for application in electronics" in 8th International Conference on Renewable Electrical Power Sources (2020):51-55.

TY  - CONF
AU  - Vlahović, Milica
AU  - Savić, Aleksandar
AU  - Martinović, Sanja
AU  - Đorđević, Nataša
AU  - Stević, Zoran
AU  - Volkov Husović, Tatjana
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/813
AB  - Electric power in Serbia is predominantly provided by thermal power plants. All of eleven existing
thermal power plants in Serbia use coal, mainly lignite in the electricity production process
thus generating about 6 million tons of fly ash per year. The estimated amount of fly ash from thermal
power plants accumulated in Serbian landfills exceeds 200 million tons. On the other hand, during
the last decades, respecting the principles of ecologically sustainable development has been imposed
on industries, and one of them is the construction industry. Due to the presence of amorphous SiO2
and Al2O3, fly ash as pozzolanic material is convenient for the production of concrete and mortar.
Consequently, multiple positive effects can be expected by the proper consumption of fly ash- reducing
landfills and improving concrete properties. The idea of this study is to analyze the possibility of
recycling fly ash from a thermal power plant by replacing a part of common mineral filler- limestone
in the production of self-compacting concrete (SCC). Properties of conventional SCC with limestone
and compositions with different fly ash content were compared. Considering that requirements for SCC should be satisfied and all properties remain or enhance in the case of fly ash addition, this
study proved that all designed concretes can be used for structural applications.
AB  - Električnu energiju u Srbiji pretežno obezbeđuju termoelektrane. Svih jedanaest termoelektrana
u Srbiji koriste ugalj, uglavnom lignit u procesu proizvodnje električne energije, čime se
godišnje generiše oko 6 miliona tona letećeg pepela. Procenjena količina letećeg pepela iz termoelektrana
akumulirana na deponijama u Srbiji prelazi 200 miliona tona. S druge strane, poslednjih
decenija poštovanje principa ekološki održivog razvoja nametnuto je industrijama, a jedna od njih je
i građevinska. Zahvaljujući prisustvu amorfnog SiO2 i Al2O3, pepeo kao pucolanski materijal pogodan
je za proizvodnju betona i maltera. Zbog toga se pravilnom upotrebom letećeg pepela mogu
očekivati višestruki pozitivni efekti- smanjenje deponija i poboljšanje svojstava betona. Ideja ovog
istraživanja je analiziranje mogućnosti recikliranja letećeg pepela iz termoelektrane tako što će delimično
zameniti uobičajeni mineralni punioc- krečnjak u proizvodnji samozbijajućeg betona (SCC).
Upoređena su svojstva konvencionalnog SCC sa krečnjakom i kompozicija sa različitim sadržajem
pepela. S obzirom da je u slučaju dodatka letećeg pepela potrebno da budu zadovoljeni zahtevi za
SCC, kao i da svojstva betona ostanu ista ili poboljšana, ova studija je pokazala da se sve dizajnirane
smeše mogu koristiti za konstrukcijske primene.
PB  - Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources
C3  - 8th International Conference on Renewable Electrical Power Sources
T1  - Enhancing properties of concrete by addition of fly ash from a thermal power plant for application in geothermal systems
EP  - 86
SP  - 77
ER  - 

@conference{
author = "Vlahović, Milica and Savić, Aleksandar and Martinović, Sanja and Đorđević, Nataša and Stević, Zoran and Volkov Husović, Tatjana",
year = "2020",
abstract = "Electric power in Serbia is predominantly provided by thermal power plants. All of eleven existing
thermal power plants in Serbia use coal, mainly lignite in the electricity production process
thus generating about 6 million tons of fly ash per year. The estimated amount of fly ash from thermal
power plants accumulated in Serbian landfills exceeds 200 million tons. On the other hand, during
the last decades, respecting the principles of ecologically sustainable development has been imposed
on industries, and one of them is the construction industry. Due to the presence of amorphous SiO2
and Al2O3, fly ash as pozzolanic material is convenient for the production of concrete and mortar.
Consequently, multiple positive effects can be expected by the proper consumption of fly ash- reducing
landfills and improving concrete properties. The idea of this study is to analyze the possibility of
recycling fly ash from a thermal power plant by replacing a part of common mineral filler- limestone
in the production of self-compacting concrete (SCC). Properties of conventional SCC with limestone
and compositions with different fly ash content were compared. Considering that requirements for SCC should be satisfied and all properties remain or enhance in the case of fly ash addition, this
study proved that all designed concretes can be used for structural applications., Električnu energiju u Srbiji pretežno obezbeđuju termoelektrane. Svih jedanaest termoelektrana
u Srbiji koriste ugalj, uglavnom lignit u procesu proizvodnje električne energije, čime se
godišnje generiše oko 6 miliona tona letećeg pepela. Procenjena količina letećeg pepela iz termoelektrana
akumulirana na deponijama u Srbiji prelazi 200 miliona tona. S druge strane, poslednjih
decenija poštovanje principa ekološki održivog razvoja nametnuto je industrijama, a jedna od njih je
i građevinska. Zahvaljujući prisustvu amorfnog SiO2 i Al2O3, pepeo kao pucolanski materijal pogodan
je za proizvodnju betona i maltera. Zbog toga se pravilnom upotrebom letećeg pepela mogu
očekivati višestruki pozitivni efekti- smanjenje deponija i poboljšanje svojstava betona. Ideja ovog
istraživanja je analiziranje mogućnosti recikliranja letećeg pepela iz termoelektrane tako što će delimično
zameniti uobičajeni mineralni punioc- krečnjak u proizvodnji samozbijajućeg betona (SCC).
Upoređena su svojstva konvencionalnog SCC sa krečnjakom i kompozicija sa različitim sadržajem
pepela. S obzirom da je u slučaju dodatka letećeg pepela potrebno da budu zadovoljeni zahtevi za
SCC, kao i da svojstva betona ostanu ista ili poboljšana, ova studija je pokazala da se sve dizajnirane
smeše mogu koristiti za konstrukcijske primene.",
publisher = "Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources",
journal = "8th International Conference on Renewable Electrical Power Sources",
title = "Enhancing properties of concrete by addition of fly ash from a thermal power plant for application in geothermal systems",
pages = "86-77"
}

Vlahović, M., Savić, A., Martinović, S., Đorđević, N., Stević, Z.,& Volkov Husović, T.. (2020). Enhancing properties of concrete by addition of fly ash from a thermal power plant for application in geothermal systems. in 8th International Conference on Renewable Electrical Power Sources
Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources., 77-86.

Vlahović M, Savić A, Martinović S, Đorđević N, Stević Z, Volkov Husović T. Enhancing properties of concrete by addition of fly ash from a thermal power plant for application in geothermal systems. in 8th International Conference on Renewable Electrical Power Sources. 2020;:77-86..

Vlahović, Milica, Savić, Aleksandar, Martinović, Sanja, Đorđević, Nataša, Stević, Zoran, Volkov Husović, Tatjana, "Enhancing properties of concrete by addition of fly ash from a thermal power plant for application in geothermal systems" in 8th International Conference on Renewable Electrical Power Sources (2020):77-86.

TY  - JOUR
AU  - Savić, Aleksandar
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Đorđević, Nataša
AU  - Broceta, Gordana
AU  - Volkov-Husović, Tatjana
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/539
AB  - This study analyzes the feasibility of valorizing industrial by-product, fly ash from a thermal power plant as a partial replacement of mineral filler-limestone for the production of self-compacting concrete (SCC). Three types of SCC mixtures with different portions of fly ash and the reference mixture with limestone were designed. The synthesized SCCs in the fresh state were examined for density, entrained air content, flowability (Slump flow, Slump flow time (t500), V-funnel time (tv)), passing ability (L-box), and segregation resistance, while hardened state testing included: density, compressive and flexural strength, static modulus of elasticity, water permeability, resistance against freezing in the presence of deicing salt, and SEM analysis. Taking into account the obtained results it can be concluded that the addition of fly ash has a positive impact on the concrete properties and that the optimal content of fly ash is 20 % with respect to the total filler mass.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Valorization of Fly Ash from a Thermal Power Plant for Producing High-Performance Self-Compacting Concrete
EP  - 327
IS  - 3
SP  - 307
VL  - 52
DO  - 10.2298/SOS2003307S
UR  - conv_893
ER  - 

@article{
author = "Savić, Aleksandar and Vlahović, Milica and Martinović, Sanja and Đorđević, Nataša and Broceta, Gordana and Volkov-Husović, Tatjana",
year = "2020",
abstract = "This study analyzes the feasibility of valorizing industrial by-product, fly ash from a thermal power plant as a partial replacement of mineral filler-limestone for the production of self-compacting concrete (SCC). Three types of SCC mixtures with different portions of fly ash and the reference mixture with limestone were designed. The synthesized SCCs in the fresh state were examined for density, entrained air content, flowability (Slump flow, Slump flow time (t500), V-funnel time (tv)), passing ability (L-box), and segregation resistance, while hardened state testing included: density, compressive and flexural strength, static modulus of elasticity, water permeability, resistance against freezing in the presence of deicing salt, and SEM analysis. Taking into account the obtained results it can be concluded that the addition of fly ash has a positive impact on the concrete properties and that the optimal content of fly ash is 20 % with respect to the total filler mass.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Valorization of Fly Ash from a Thermal Power Plant for Producing High-Performance Self-Compacting Concrete",
pages = "327-307",
number = "3",
volume = "52",
doi = "10.2298/SOS2003307S",
url = "conv_893"
}

Savić, A., Vlahović, M., Martinović, S., Đorđević, N., Broceta, G.,& Volkov-Husović, T.. (2020). Valorization of Fly Ash from a Thermal Power Plant for Producing High-Performance Self-Compacting Concrete. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 52(3), 307-327.
https://doi.org/10.2298/SOS2003307S
conv_893

Savić A, Vlahović M, Martinović S, Đorđević N, Broceta G, Volkov-Husović T. Valorization of Fly Ash from a Thermal Power Plant for Producing High-Performance Self-Compacting Concrete. in Science of Sintering. 2020;52(3):307-327.
doi:10.2298/SOS2003307S
conv_893 .

Savić, Aleksandar, Vlahović, Milica, Martinović, Sanja, Đorđević, Nataša, Broceta, Gordana, Volkov-Husović, Tatjana, "Valorization of Fly Ash from a Thermal Power Plant for Producing High-Performance Self-Compacting Concrete" in Science of Sintering, 52, no. 3 (2020):307-327,
https://doi.org/10.2298/SOS2003307S .,
conv_893 .

TY  - JOUR
AU  - Milićević, Sonja
AU  - Vlahović, Milica
AU  - Kragović, Milan
AU  - Martinović, Sanja
AU  - Milošević, Vladan
AU  - Jovanović, Ivana
AU  - Stojmenović, Marija
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/536
AB  - The intent in this paper is to define how the batch equilibrium results of copper removal from a synthetic solution on natural zeolite can be used for prediction of the breakthrough curves in the fixed-bed system for both a synthetic solution and wastewater. Natural zeolite from the Vranjska Banja deposit, Serbia, has been fully characterized (XRD, chemical composition, DTA/TG, SEM/EDS) as a clinoptilolite with cation exchange capacity of 146 meq/100 g. The maximum adsorption capacity (q(m)) in the batch of the mono-component system (synthetic copper solution) obtained using the Langmuir isotherm model was 7.30 and 6.10 mg/g for particle size below 0.043 and 0.6-0.8 mm, respectively. Using the flow-through system with the 0.6-0.8 mm zeolite fixed-bed, almost double the adsorption capacity (11.2-12.2 mg/g) has been achieved in a saturation point for the copper removal from the synthetic solution, compared to the batch. Better results are attributed to the constant high concentration gradient in flow-through systems compared to the batch. The complex composition of wastewater and large amounts of earth alkaline metals disturb free adsorption sights on the zeolite surface. This results in a less effective adsorption in flow-through systems with adsorption capacity in breakthrough point of 5.84 mg/g (similar to 0.95 x qm) and in a saturation point of 7.10 mg/g (similar to 1.15 x qm).
PB  - MDPI, Basel
T2  - Minerals
T1  - Removal of Copper from Mining Wastewater Using Natural Raw Material-Comparative Study between the Synthetic and Natural Wastewater Samples
IS  - 9
VL  - 10
DO  - 10.3390/min10090753
UR  - conv_894
ER  - 

@article{
author = "Milićević, Sonja and Vlahović, Milica and Kragović, Milan and Martinović, Sanja and Milošević, Vladan and Jovanović, Ivana and Stojmenović, Marija",
year = "2020",
abstract = "The intent in this paper is to define how the batch equilibrium results of copper removal from a synthetic solution on natural zeolite can be used for prediction of the breakthrough curves in the fixed-bed system for both a synthetic solution and wastewater. Natural zeolite from the Vranjska Banja deposit, Serbia, has been fully characterized (XRD, chemical composition, DTA/TG, SEM/EDS) as a clinoptilolite with cation exchange capacity of 146 meq/100 g. The maximum adsorption capacity (q(m)) in the batch of the mono-component system (synthetic copper solution) obtained using the Langmuir isotherm model was 7.30 and 6.10 mg/g for particle size below 0.043 and 0.6-0.8 mm, respectively. Using the flow-through system with the 0.6-0.8 mm zeolite fixed-bed, almost double the adsorption capacity (11.2-12.2 mg/g) has been achieved in a saturation point for the copper removal from the synthetic solution, compared to the batch. Better results are attributed to the constant high concentration gradient in flow-through systems compared to the batch. The complex composition of wastewater and large amounts of earth alkaline metals disturb free adsorption sights on the zeolite surface. This results in a less effective adsorption in flow-through systems with adsorption capacity in breakthrough point of 5.84 mg/g (similar to 0.95 x qm) and in a saturation point of 7.10 mg/g (similar to 1.15 x qm).",
publisher = "MDPI, Basel",
journal = "Minerals",
title = "Removal of Copper from Mining Wastewater Using Natural Raw Material-Comparative Study between the Synthetic and Natural Wastewater Samples",
number = "9",
volume = "10",
doi = "10.3390/min10090753",
url = "conv_894"
}

Milićević, S., Vlahović, M., Kragović, M., Martinović, S., Milošević, V., Jovanović, I.,& Stojmenović, M.. (2020). Removal of Copper from Mining Wastewater Using Natural Raw Material-Comparative Study between the Synthetic and Natural Wastewater Samples. in Minerals
MDPI, Basel., 10(9).
https://doi.org/10.3390/min10090753
conv_894

Milićević S, Vlahović M, Kragović M, Martinović S, Milošević V, Jovanović I, Stojmenović M. Removal of Copper from Mining Wastewater Using Natural Raw Material-Comparative Study between the Synthetic and Natural Wastewater Samples. in Minerals. 2020;10(9).
doi:10.3390/min10090753
conv_894 .

Milićević, Sonja, Vlahović, Milica, Kragović, Milan, Martinović, Sanja, Milošević, Vladan, Jovanović, Ivana, Stojmenović, Marija, "Removal of Copper from Mining Wastewater Using Natural Raw Material-Comparative Study between the Synthetic and Natural Wastewater Samples" in Minerals, 10, no. 9 (2020),
https://doi.org/10.3390/min10090753 .,
conv_894 .

TY  - CONF
AU  - Milićević, Sonja
AU  - Martinović, Sanja
AU  - Jovanović, Vladimir
AU  - Vlahović, Milica
AU  - Kanari, Ndue
AU  - Popović, Ana
AU  - Kojić, Marija
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1085
AB  - This paper covers the results of pelletizing fly ash in order to obtain pellets, with satisfied mechanical properties, that can be used in wastewater treatments. Serbian fly ash from “Nikola Tesla” power plant was used as a low cost sorbent. Fly ash was subjected to elementary and XRD analysis. Portland cement was used as a pelletizing agent along with the plastification agent. The mechanical properties of pellets were investigated using different methods such as: pressure resistance, impact resistance, resistance to abrasion, and disintegration in water. The best results were obtained with the addition of 10 % of cement along with the plasticizer.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - XIII International Mineral Processing and Recycling Conference
T1  - Development and mechanical properties of the pelletized fly ash
EP  - 44
SP  - 38
ER  - 

@conference{
author = "Milićević, Sonja and Martinović, Sanja and Jovanović, Vladimir and Vlahović, Milica and Kanari, Ndue and Popović, Ana and Kojić, Marija",
year = "2019",
abstract = "This paper covers the results of pelletizing fly ash in order to obtain pellets, with satisfied mechanical properties, that can be used in wastewater treatments. Serbian fly ash from “Nikola Tesla” power plant was used as a low cost sorbent. Fly ash was subjected to elementary and XRD analysis. Portland cement was used as a pelletizing agent along with the plastification agent. The mechanical properties of pellets were investigated using different methods such as: pressure resistance, impact resistance, resistance to abrasion, and disintegration in water. The best results were obtained with the addition of 10 % of cement along with the plasticizer.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "XIII International Mineral Processing and Recycling Conference",
title = "Development and mechanical properties of the pelletized fly ash",
pages = "44-38"
}

Milićević, S., Martinović, S., Jovanović, V., Vlahović, M., Kanari, N., Popović, A.,& Kojić, M.. (2019). Development and mechanical properties of the pelletized fly ash. in XIII International Mineral Processing and Recycling Conference
Bor : University of Belgrade, Technical Faculty in Bor., 38-44.

Milićević S, Martinović S, Jovanović V, Vlahović M, Kanari N, Popović A, Kojić M. Development and mechanical properties of the pelletized fly ash. in XIII International Mineral Processing and Recycling Conference. 2019;:38-44..

Milićević, Sonja, Martinović, Sanja, Jovanović, Vladimir, Vlahović, Milica, Kanari, Ndue, Popović, Ana, Kojić, Marija, "Development and mechanical properties of the pelletized fly ash" in XIII International Mineral Processing and Recycling Conference (2019):38-44.

TY  - JOUR
AU  - Milićević, Sonja
AU  - Martinović, Sanja
AU  - Milošević, Vladan
AU  - Stojanović, Jovica
AU  - Povrenović, Dragan
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/462
AB  - Systematic modification of three structurally different minerals (zeolite, mica, and vermiculite) was carried out with the aim of determining the modification mechanism and exposing the hydrophobic surface that can be used as a sorbent for many organic compounds. Mechanism of modification with cationic surfactant depends strongly on the mineral type. In order to identify the influence of aluminosilicates structural differences on the modification process, adsorption experiments with organic matter and water vapor, supplemented with the DTA/TG analysis, were performed. The cation exchange capacity (CEC) value was 1454>560>28meqkg(-1) for zeolite (clinoptilolite), vermiculite, and mica (muscovite), respectively. Despite its CEC value, vermiculite adsorbed three times the amount of organic matter than did clinoptilolite due to the porous structure of zeolite, which acted to limit the adsorption only on the external exchangeable cations. If the loading amount is equal to the CEC or the external cation exchange capacity for clinoptilolite (ECEC approximate to 10% CEC), the monolayer will form while mineral surface will have hydrophobic character. Only one active center exists at the surface of the clinoptilolite that was identified by DTA curves with a sharp and defined peak around 300 degrees C and by the mass loss at the TG diagrams. Two significant and equal active centers were observed in vermiculite, one for the exchange of the surface cations and the other for the interlayer cations and H2O molecules. Muscovite CEC is negligible, and due to the absence of any other functional groups, the modification of this mineral was impossible.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Differences in coating mechanism of structurally different aluminosilicates observed through the thermal analysis
EP  - 1019
IS  - 2
SP  - 1011
VL  - 134
DO  - 10.1007/s10973-018-7351-3
UR  - conv_836
ER  - 

@article{
author = "Milićević, Sonja and Martinović, Sanja and Milošević, Vladan and Stojanović, Jovica and Povrenović, Dragan",
year = "2018",
abstract = "Systematic modification of three structurally different minerals (zeolite, mica, and vermiculite) was carried out with the aim of determining the modification mechanism and exposing the hydrophobic surface that can be used as a sorbent for many organic compounds. Mechanism of modification with cationic surfactant depends strongly on the mineral type. In order to identify the influence of aluminosilicates structural differences on the modification process, adsorption experiments with organic matter and water vapor, supplemented with the DTA/TG analysis, were performed. The cation exchange capacity (CEC) value was 1454>560>28meqkg(-1) for zeolite (clinoptilolite), vermiculite, and mica (muscovite), respectively. Despite its CEC value, vermiculite adsorbed three times the amount of organic matter than did clinoptilolite due to the porous structure of zeolite, which acted to limit the adsorption only on the external exchangeable cations. If the loading amount is equal to the CEC or the external cation exchange capacity for clinoptilolite (ECEC approximate to 10% CEC), the monolayer will form while mineral surface will have hydrophobic character. Only one active center exists at the surface of the clinoptilolite that was identified by DTA curves with a sharp and defined peak around 300 degrees C and by the mass loss at the TG diagrams. Two significant and equal active centers were observed in vermiculite, one for the exchange of the surface cations and the other for the interlayer cations and H2O molecules. Muscovite CEC is negligible, and due to the absence of any other functional groups, the modification of this mineral was impossible.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Differences in coating mechanism of structurally different aluminosilicates observed through the thermal analysis",
pages = "1019-1011",
number = "2",
volume = "134",
doi = "10.1007/s10973-018-7351-3",
url = "conv_836"
}

Milićević, S., Martinović, S., Milošević, V., Stojanović, J.,& Povrenović, D.. (2018). Differences in coating mechanism of structurally different aluminosilicates observed through the thermal analysis. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 134(2), 1011-1019.
https://doi.org/10.1007/s10973-018-7351-3
conv_836

Milićević S, Martinović S, Milošević V, Stojanović J, Povrenović D. Differences in coating mechanism of structurally different aluminosilicates observed through the thermal analysis. in Journal of Thermal Analysis and Calorimetry. 2018;134(2):1011-1019.
doi:10.1007/s10973-018-7351-3
conv_836 .

Milićević, Sonja, Martinović, Sanja, Milošević, Vladan, Stojanović, Jovica, Povrenović, Dragan, "Differences in coating mechanism of structurally different aluminosilicates observed through the thermal analysis" in Journal of Thermal Analysis and Calorimetry, 134, no. 2 (2018):1011-1019,
https://doi.org/10.1007/s10973-018-7351-3 .,
conv_836 .

TY  - JOUR
AU  - Milićević, Sonja
AU  - Povrenović, Dragan
AU  - Milošević, Vladan
AU  - Martinović, Sanja
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/418
AB  - U radu su prikazani rezultati ispitivanja uklanjanja jona bakra primenom tri prirodna zeolita sa različitih lokaliteta (Vranjska banja-VB, Igroš-I i Baia Mare-BM). U cilju karakterizacije zeolita, izvršena su ispitivanja elementarnog sastava, kao i rentgenska (XRDP) i termijska analiza (DTA/TG). Kapaciteti katjonske izmene (CEC) ispitivanih zeolita VB, I i BM iznose 150,1, 169,2 i 176,5 meq/100g. Maksimalni adsorpcioni kapaciteti bakra na VB, I i BM zeolitima iznose 7,75, 8,51, i 11,18 mg/g. Na osnovu ostvarenih rezultata, dobijena je matematička zavisnost koja dobro opisuje vezu između vrednosti CEC i adsorpcionog kapaciteta za bakar. Ova lineralna zavisnost je testirana primenom različitih eksperimentalnih rezultata. Primenom ove zavisnosti moguće je da se predvidi vrednost adsorpcionog kapaciteta bakra na različitim zeolitima poznavanjem njegove CEC vrednosti. .
AB  - In this paper the ability of three natural zeolites from different localities (Vranjska banja-VB, Igroš-I and Baia Mare-BM deposits) to remove copper has been investigated. These three zeolites were subjected to the elementary analysis as well as XRDP and DTA/TG analysis due to complete characterization. Cation exchange capacity of VB, I and BM zeolites were 150.1, 169.2, and 176.5 meq/100g. The maximum adsorption capacity for the copper adsorption on VB, I and BM-zeolites were 7.75, 8.51, and 11.18 mg/g. Based on the obtained results the mathematical expression that describes correlation between the CEC and copper adsorption capacity has been developed. This linear dependance has been tested with the vast variety of experimental results. According to this expression it is possible to predict the copper adsorption capacity for different zeolites based only on their CEC value.
PB  - Univerzitet u Beogradu - Tehnički fakultet u Boru, Beograd
T2  - Journal of Mining and Metallurgy A: Mining
T1  - Predviđanje adsorpcionog kapaciteta bakra na različitim zeolitima
T1  - Predicting the copper adsorption capacity on different zeolites
EP  - 63
IS  - 1
SP  - 57
VL  - 53
DO  - 10.5937/JMMA1701057M
UR  - conv_338
ER  - 

@article{
author = "Milićević, Sonja and Povrenović, Dragan and Milošević, Vladan and Martinović, Sanja",
year = "2017",
abstract = "U radu su prikazani rezultati ispitivanja uklanjanja jona bakra primenom tri prirodna zeolita sa različitih lokaliteta (Vranjska banja-VB, Igroš-I i Baia Mare-BM). U cilju karakterizacije zeolita, izvršena su ispitivanja elementarnog sastava, kao i rentgenska (XRDP) i termijska analiza (DTA/TG). Kapaciteti katjonske izmene (CEC) ispitivanih zeolita VB, I i BM iznose 150,1, 169,2 i 176,5 meq/100g. Maksimalni adsorpcioni kapaciteti bakra na VB, I i BM zeolitima iznose 7,75, 8,51, i 11,18 mg/g. Na osnovu ostvarenih rezultata, dobijena je matematička zavisnost koja dobro opisuje vezu između vrednosti CEC i adsorpcionog kapaciteta za bakar. Ova lineralna zavisnost je testirana primenom različitih eksperimentalnih rezultata. Primenom ove zavisnosti moguće je da se predvidi vrednost adsorpcionog kapaciteta bakra na različitim zeolitima poznavanjem njegove CEC vrednosti. ., In this paper the ability of three natural zeolites from different localities (Vranjska banja-VB, Igroš-I and Baia Mare-BM deposits) to remove copper has been investigated. These three zeolites were subjected to the elementary analysis as well as XRDP and DTA/TG analysis due to complete characterization. Cation exchange capacity of VB, I and BM zeolites were 150.1, 169.2, and 176.5 meq/100g. The maximum adsorption capacity for the copper adsorption on VB, I and BM-zeolites were 7.75, 8.51, and 11.18 mg/g. Based on the obtained results the mathematical expression that describes correlation between the CEC and copper adsorption capacity has been developed. This linear dependance has been tested with the vast variety of experimental results. According to this expression it is possible to predict the copper adsorption capacity for different zeolites based only on their CEC value.",
publisher = "Univerzitet u Beogradu - Tehnički fakultet u Boru, Beograd",
journal = "Journal of Mining and Metallurgy A: Mining",
title = "Predviđanje adsorpcionog kapaciteta bakra na različitim zeolitima, Predicting the copper adsorption capacity on different zeolites",
pages = "63-57",
number = "1",
volume = "53",
doi = "10.5937/JMMA1701057M",
url = "conv_338"
}

Milićević, S., Povrenović, D., Milošević, V.,& Martinović, S.. (2017). Predviđanje adsorpcionog kapaciteta bakra na različitim zeolitima. in Journal of Mining and Metallurgy A: Mining
Univerzitet u Beogradu - Tehnički fakultet u Boru, Beograd., 53(1), 57-63.
https://doi.org/10.5937/JMMA1701057M
conv_338

Milićević S, Povrenović D, Milošević V, Martinović S. Predviđanje adsorpcionog kapaciteta bakra na različitim zeolitima. in Journal of Mining and Metallurgy A: Mining. 2017;53(1):57-63.
doi:10.5937/JMMA1701057M
conv_338 .

Milićević, Sonja, Povrenović, Dragan, Milošević, Vladan, Martinović, Sanja, "Predviđanje adsorpcionog kapaciteta bakra na različitim zeolitima" in Journal of Mining and Metallurgy A: Mining, 53, no. 1 (2017):57-63,
https://doi.org/10.5937/JMMA1701057M .,
conv_338 .

TY  - JOUR
AU  - Milićević, Sonja
AU  - Milošević, Vladan
AU  - Povrenović, Dragan
AU  - Stojanović, Jovica
AU  - Martinović, Sanja
AU  - Babić, Biljana
PY  - 2013
UR  - https://ritnms.itnms.ac.rs/handle/123456789/262
AB  - The increasing levels of industrial wastewater released to the environment present a serious threat to human health, living resources, and ecological systems. Fe-modified zeolites were developed and tested for removal of Cu2+ and Zn2+ from contaminated water. The surfaces of the naturally occurring zeolite, clinoptilolite, were modified with Fe(III) oxyhydroxides using three different methods, denoted I, II, and III (FeCli(1), FeCli(2), and FeNaCli(1), respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 center dot 6H(2)O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 center dot 6H(2)O solution in 0.1 M KOH (pH = 10); and Method III was the same as Method I except the clinoptilolite was pretreated with NaCl. Newly synthesized materials from these three methods were then tested for their ability to enhance the sorption capacity for Cu and Zn compared to the natural sample (Cli). Powder X-ray diffraction measurements and the chemical composition of these modified samples confirmed that clinoptilolite maintained its structure while amorphous Fe3+ species were synthesized. The specific surface area (BET method) of both the natural and modified clinoptilolite increased by 2 and 7.5 times for Methods I and II, respectively. Scanning electron microscopy and energy dispersive X-ray spectroscopy revealed that CaO was formed during Method I (FeCli(1)). Throughout the adsorption process, the hydrolysis of CaO and the release of OH- caused the precipitation of Cu and Zn hydroxide, which made the determination of the sorption capacity of FeCli(1) impossible. This phenomenon was avoided in Method III (FeNaCli(1)) because of the absence of exchangeable Ca2+. The adsorption experiments with Method II resulted in double-enchanced adsoprtion capacity. Laboratory batch experiments revealed that the sorption capacities increased in the following order: Cli  LT  FeCli(2)  LT  FeNaCli(1), for Cu: 0.121 mmol/g  LT  0.251 mmol/g  LT  0.403 mmol/g and for Zn: 0.128 mmol/g  LT  0.234 mmol/g  LT  0.381 mmol/g.
PB  - Springer, New York
T2  - Clays and Clay Minerals
T1  - Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite
EP  - 516
IS  - 6
SP  - 508
VL  - 61
DO  - 10.1346/CCMN.2013.0610603
UR  - conv_696
ER  - 

@article{
author = "Milićević, Sonja and Milošević, Vladan and Povrenović, Dragan and Stojanović, Jovica and Martinović, Sanja and Babić, Biljana",
year = "2013",
abstract = "The increasing levels of industrial wastewater released to the environment present a serious threat to human health, living resources, and ecological systems. Fe-modified zeolites were developed and tested for removal of Cu2+ and Zn2+ from contaminated water. The surfaces of the naturally occurring zeolite, clinoptilolite, were modified with Fe(III) oxyhydroxides using three different methods, denoted I, II, and III (FeCli(1), FeCli(2), and FeNaCli(1), respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 center dot 6H(2)O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 center dot 6H(2)O solution in 0.1 M KOH (pH = 10); and Method III was the same as Method I except the clinoptilolite was pretreated with NaCl. Newly synthesized materials from these three methods were then tested for their ability to enhance the sorption capacity for Cu and Zn compared to the natural sample (Cli). Powder X-ray diffraction measurements and the chemical composition of these modified samples confirmed that clinoptilolite maintained its structure while amorphous Fe3+ species were synthesized. The specific surface area (BET method) of both the natural and modified clinoptilolite increased by 2 and 7.5 times for Methods I and II, respectively. Scanning electron microscopy and energy dispersive X-ray spectroscopy revealed that CaO was formed during Method I (FeCli(1)). Throughout the adsorption process, the hydrolysis of CaO and the release of OH- caused the precipitation of Cu and Zn hydroxide, which made the determination of the sorption capacity of FeCli(1) impossible. This phenomenon was avoided in Method III (FeNaCli(1)) because of the absence of exchangeable Ca2+. The adsorption experiments with Method II resulted in double-enchanced adsoprtion capacity. Laboratory batch experiments revealed that the sorption capacities increased in the following order: Cli  LT  FeCli(2)  LT  FeNaCli(1), for Cu: 0.121 mmol/g  LT  0.251 mmol/g  LT  0.403 mmol/g and for Zn: 0.128 mmol/g  LT  0.234 mmol/g  LT  0.381 mmol/g.",
publisher = "Springer, New York",
journal = "Clays and Clay Minerals",
title = "Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite",
pages = "516-508",
number = "6",
volume = "61",
doi = "10.1346/CCMN.2013.0610603",
url = "conv_696"
}

Milićević, S., Milošević, V., Povrenović, D., Stojanović, J., Martinović, S.,& Babić, B.. (2013). Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite. in Clays and Clay Minerals
Springer, New York., 61(6), 508-516.
https://doi.org/10.1346/CCMN.2013.0610603
conv_696

Milićević S, Milošević V, Povrenović D, Stojanović J, Martinović S, Babić B. Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite. in Clays and Clay Minerals. 2013;61(6):508-516.
doi:10.1346/CCMN.2013.0610603
conv_696 .

Milićević, Sonja, Milošević, Vladan, Povrenović, Dragan, Stojanović, Jovica, Martinović, Sanja, Babić, Biljana, "Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite" in Clays and Clay Minerals, 61, no. 6 (2013):508-516,
https://doi.org/10.1346/CCMN.2013.0610603 .,
conv_696 .

TY  - JOUR
AU  - Milićević, Sonja
AU  - Boljanac, Tamara
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Milošević, Vladan
AU  - Babić, Biljana
PY  - 2012
UR  - https://ritnms.itnms.ac.rs/handle/123456789/206
AB  - Serbian lignite from "Kolubara" deposit was used as a low cost adsorbent for removal of copper ions (Cu2+) from aqueous solutions. Lignite was subjected to the elementary and technical analysis as well as BET and FTIR analysis due to complete characterization. Basic comparison between lignite and activated carbon was also done. As a method, batch adsorption procedure was applied. Adsorption efficiency was studied as a function of the initial metal concentration, pH of the solution, contact time, and amount of the adsorbent. Optimum removal of copper ions was achieved at pH values of 5.0. About 90% of copper cations were removed in 5 min of contact time from the solution with the lowest copper concentration (50 mg Cu2+/l) regardless adsorbent amount, while the same effect of adsorption was achieved in 60 min in case of solutions with higher concentrations of copper. It was concluded that the effect of adsorbent amount on adsorption kinetics is evident but not crucial. It was proved that the experimental results of copper adsorption fit well to a Langmuirian type isotherm which was used to describe monitored adsorption phenomena. The calculated adsorption capacities of lignite for copper adsorption decrease with increasing adsorbent amount. The study proved that tested lignite is very efficient adsorbent material, especially in case of low copper concentration in aqueous solution where the usual methods are either economically unrewarding or technically complicated. This behavior can be explained by FTIR spectrum despite a small specific surface area of lignite. Namely, many bands (peaks) are attributed to the functional groups that they are involved in chemisorption and ionic exchange, basic mechanisms of copper adsorption.
PB  - Elsevier Science Bv, Amsterdam
T2  - Fuel Processing Technology
T1  - Removal of copper from aqueous solutions by low cost adsorbent-Kolubara lignite
EP  - 7
SP  - 1
VL  - 95
DO  - 10.1016/j.fuproc.2011.11.005
UR  - conv_615
ER  - 

@article{
author = "Milićević, Sonja and Boljanac, Tamara and Martinović, Sanja and Vlahović, Milica and Milošević, Vladan and Babić, Biljana",
year = "2012",
abstract = "Serbian lignite from "Kolubara" deposit was used as a low cost adsorbent for removal of copper ions (Cu2+) from aqueous solutions. Lignite was subjected to the elementary and technical analysis as well as BET and FTIR analysis due to complete characterization. Basic comparison between lignite and activated carbon was also done. As a method, batch adsorption procedure was applied. Adsorption efficiency was studied as a function of the initial metal concentration, pH of the solution, contact time, and amount of the adsorbent. Optimum removal of copper ions was achieved at pH values of 5.0. About 90% of copper cations were removed in 5 min of contact time from the solution with the lowest copper concentration (50 mg Cu2+/l) regardless adsorbent amount, while the same effect of adsorption was achieved in 60 min in case of solutions with higher concentrations of copper. It was concluded that the effect of adsorbent amount on adsorption kinetics is evident but not crucial. It was proved that the experimental results of copper adsorption fit well to a Langmuirian type isotherm which was used to describe monitored adsorption phenomena. The calculated adsorption capacities of lignite for copper adsorption decrease with increasing adsorbent amount. The study proved that tested lignite is very efficient adsorbent material, especially in case of low copper concentration in aqueous solution where the usual methods are either economically unrewarding or technically complicated. This behavior can be explained by FTIR spectrum despite a small specific surface area of lignite. Namely, many bands (peaks) are attributed to the functional groups that they are involved in chemisorption and ionic exchange, basic mechanisms of copper adsorption.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Fuel Processing Technology",
title = "Removal of copper from aqueous solutions by low cost adsorbent-Kolubara lignite",
pages = "7-1",
volume = "95",
doi = "10.1016/j.fuproc.2011.11.005",
url = "conv_615"
}

Milićević, S., Boljanac, T., Martinović, S., Vlahović, M., Milošević, V.,& Babić, B.. (2012). Removal of copper from aqueous solutions by low cost adsorbent-Kolubara lignite. in Fuel Processing Technology
Elsevier Science Bv, Amsterdam., 95, 1-7.
https://doi.org/10.1016/j.fuproc.2011.11.005
conv_615

Milićević S, Boljanac T, Martinović S, Vlahović M, Milošević V, Babić B. Removal of copper from aqueous solutions by low cost adsorbent-Kolubara lignite. in Fuel Processing Technology. 2012;95:1-7.
doi:10.1016/j.fuproc.2011.11.005
conv_615 .

Milićević, Sonja, Boljanac, Tamara, Martinović, Sanja, Vlahović, Milica, Milošević, Vladan, Babić, Biljana, "Removal of copper from aqueous solutions by low cost adsorbent-Kolubara lignite" in Fuel Processing Technology, 95 (2012):1-7,
https://doi.org/10.1016/j.fuproc.2011.11.005 .,
conv_615 .

TY  - JOUR
AU  - Vlahović, Milica
AU  - Boljanac, Tamara
AU  - Branković, Anđelka
AU  - Vidojković, Velislav M.
AU  - Martinović, Sanja
AU  - Đorđević, Nataša
PY  - 2010
UR  - https://ritnms.itnms.ac.rs/handle/123456789/173
AB  - U radu je ispitana koroziona otpornost sumpornog betona u uslovima različitih hemijski agresivnih sredina. Polazne komponente za dobijanje sumpornog betona bile su agregat definisanog sastava, modifikovano sumporno vezivo i različiti punioci (talk, glinica, mikrosilika i elektrofilerski pepeo). Ispitivanje materijala na otpornost u agresivnim sredinama i to u 20% H2SO4, 10% HCl i 3% NaCl na sobnoj temperaturi praćeno je promenom mase i čvrstoće sumpornog betona u trajanju do 360 dana. Rezultati su pokazali da uzorci sumpornog betona sa elektrofilterskim pepelom i talkom imaju bolju korozionu otpornost u kiselim sredinama u odnosu na betone sa glinicom i mikrosilikom. Svi uzorci imaju izuzetnu korozionu otpornost u rastvorima NaCl, pri čemu su najbolji uzorci sa talkom kao puniocem. Radi poređenja, praćena je i otpornost klasičnog portland cementnog betona u istim sredinama.
AB  - Sulfur concrete was prepared by using the initial components: sand as an aggregate, modified sulfur binder, and talc, alumina, microsilica, and fly ash as fillers. Portland cement concrete was made from the same aggregate and fillers and portland cement. The durability of the prepared concrete samples was tested in the following aggressive solutions: 10% HCl, 20% H2SO4, and 3% NaCl as a function of time. Changes in mass and strength of the sulfur concrete were monitored periodically during the immersion time of 360 days in above solutions. These changes were used as a measure of deterioration level. It should be highlighted that the samples with the ash and especially talc exhibit higher durability in the solutions of HCl and H2SO4 than the samples with alumina and microsilica. In the solutions of NaCl all samples have shown excellent durability while the samples with talc were the best. Portland cement concrete samples lost 20% of mass after two months and showed degradation of mechanical properties. By usage of sulfur for sulfur concrete production, a huge environmental problem regarding storage of waste sulfur from oil refining processes is solved. On the other hand, sulfur concrete with its low price has an excellent quality for the application in aggressive environments unlike the more expensive PCC.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Uticaj vrste punioca na korozionu otpornost sumpornog betona
T1  - The influence of filler type on the corrosion stability of the sulfur concrete
EP  - 137
IS  - 2
SP  - 129
VL  - 64
DO  - 10.2298/HEMIND090918001V
UR  - conv_584
ER  - 

@article{
author = "Vlahović, Milica and Boljanac, Tamara and Branković, Anđelka and Vidojković, Velislav M. and Martinović, Sanja and Đorđević, Nataša",
year = "2010",
abstract = "U radu je ispitana koroziona otpornost sumpornog betona u uslovima različitih hemijski agresivnih sredina. Polazne komponente za dobijanje sumpornog betona bile su agregat definisanog sastava, modifikovano sumporno vezivo i različiti punioci (talk, glinica, mikrosilika i elektrofilerski pepeo). Ispitivanje materijala na otpornost u agresivnim sredinama i to u 20% H2SO4, 10% HCl i 3% NaCl na sobnoj temperaturi praćeno je promenom mase i čvrstoće sumpornog betona u trajanju do 360 dana. Rezultati su pokazali da uzorci sumpornog betona sa elektrofilterskim pepelom i talkom imaju bolju korozionu otpornost u kiselim sredinama u odnosu na betone sa glinicom i mikrosilikom. Svi uzorci imaju izuzetnu korozionu otpornost u rastvorima NaCl, pri čemu su najbolji uzorci sa talkom kao puniocem. Radi poređenja, praćena je i otpornost klasičnog portland cementnog betona u istim sredinama., Sulfur concrete was prepared by using the initial components: sand as an aggregate, modified sulfur binder, and talc, alumina, microsilica, and fly ash as fillers. Portland cement concrete was made from the same aggregate and fillers and portland cement. The durability of the prepared concrete samples was tested in the following aggressive solutions: 10% HCl, 20% H2SO4, and 3% NaCl as a function of time. Changes in mass and strength of the sulfur concrete were monitored periodically during the immersion time of 360 days in above solutions. These changes were used as a measure of deterioration level. It should be highlighted that the samples with the ash and especially talc exhibit higher durability in the solutions of HCl and H2SO4 than the samples with alumina and microsilica. In the solutions of NaCl all samples have shown excellent durability while the samples with talc were the best. Portland cement concrete samples lost 20% of mass after two months and showed degradation of mechanical properties. By usage of sulfur for sulfur concrete production, a huge environmental problem regarding storage of waste sulfur from oil refining processes is solved. On the other hand, sulfur concrete with its low price has an excellent quality for the application in aggressive environments unlike the more expensive PCC.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Uticaj vrste punioca na korozionu otpornost sumpornog betona, The influence of filler type on the corrosion stability of the sulfur concrete",
pages = "137-129",
number = "2",
volume = "64",
doi = "10.2298/HEMIND090918001V",
url = "conv_584"
}

Vlahović, M., Boljanac, T., Branković, A., Vidojković, V. M., Martinović, S.,& Đorđević, N.. (2010). Uticaj vrste punioca na korozionu otpornost sumpornog betona. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 64(2), 129-137.
https://doi.org/10.2298/HEMIND090918001V
conv_584

Vlahović M, Boljanac T, Branković A, Vidojković VM, Martinović S, Đorđević N. Uticaj vrste punioca na korozionu otpornost sumpornog betona. in Hemijska industrija. 2010;64(2):129-137.
doi:10.2298/HEMIND090918001V
conv_584 .

Vlahović, Milica, Boljanac, Tamara, Branković, Anđelka, Vidojković, Velislav M., Martinović, Sanja, Đorđević, Nataša, "Uticaj vrste punioca na korozionu otpornost sumpornog betona" in Hemijska industrija, 64, no. 2 (2010):129-137,
https://doi.org/10.2298/HEMIND090918001V .,
conv_584 .

TY  - JOUR
AU  - Vidojković, Velislav M.
AU  - Đorđević, Nataša
AU  - Boljanac, Tamara
AU  - Vlahović, M.
AU  - Martinović, S.
PY  - 2006
UR  - https://ritnms.itnms.ac.rs/handle/123456789/89
AB  - U ovom istraživanju je ispitivana mogućnost korišćenja elementarnog sumpora (koji se javlja kao sporedni proizvod u procesu rafinacije nafte), kao vezivnog sredstva čestica letećeg pepela iz termoelektrana, manjih od 63 μm, čime bi se omogućilo njegovo trajno vezivanje za tle i time suzbila eolska erozija deponovanog pepela. Pokazano je da je daljim istraživanjima i realizacijom pogodnih tehničkih rešenja moguće efikasno razrešiti oba ekološka problema na jednom mestu.
AB  - Thermal power plants in Serbia use lignite for electrical power production The secondary product of coal combustion is fly ash in the amount of 17%. Fly ash causes the pollution of air, water and soil, and also cause many human, especially lung diseases. Secondary sulphur is a product of crude oil refining. The aim of this study was to investigate the use of sulphur as a bonding material in ultra fine particle agglomeration (smaller than 63 μm) in fly ash. The agglomeration should make the ash particles larger and heavy enough to fall without flying fractions. The experiments showed that during the homogenization of the ashes and sulphur from 150 to 170 °C in a reactor with intensive mixing, an amount of 15% sulphur was sufficient to bond particles and cause agglomeration without visible flying fractions.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Ispitivanje mogućnosti vezivanja čestica letećeg pepela iz termoelektrana elementarnim sumporom
T1  - Investigation of the possibility of binding fly ash particles by elemental sulphur
EP  - 147
IS  - 5-6
SP  - 144
VL  - 60
DO  - 10.2298/HEMIND0606144V
UR  - conv_281
ER  - 

@article{
author = "Vidojković, Velislav M. and Đorđević, Nataša and Boljanac, Tamara and Vlahović, M. and Martinović, S.",
year = "2006",
abstract = "U ovom istraživanju je ispitivana mogućnost korišćenja elementarnog sumpora (koji se javlja kao sporedni proizvod u procesu rafinacije nafte), kao vezivnog sredstva čestica letećeg pepela iz termoelektrana, manjih od 63 μm, čime bi se omogućilo njegovo trajno vezivanje za tle i time suzbila eolska erozija deponovanog pepela. Pokazano je da je daljim istraživanjima i realizacijom pogodnih tehničkih rešenja moguće efikasno razrešiti oba ekološka problema na jednom mestu., Thermal power plants in Serbia use lignite for electrical power production The secondary product of coal combustion is fly ash in the amount of 17%. Fly ash causes the pollution of air, water and soil, and also cause many human, especially lung diseases. Secondary sulphur is a product of crude oil refining. The aim of this study was to investigate the use of sulphur as a bonding material in ultra fine particle agglomeration (smaller than 63 μm) in fly ash. The agglomeration should make the ash particles larger and heavy enough to fall without flying fractions. The experiments showed that during the homogenization of the ashes and sulphur from 150 to 170 °C in a reactor with intensive mixing, an amount of 15% sulphur was sufficient to bond particles and cause agglomeration without visible flying fractions.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Ispitivanje mogućnosti vezivanja čestica letećeg pepela iz termoelektrana elementarnim sumporom, Investigation of the possibility of binding fly ash particles by elemental sulphur",
pages = "147-144",
number = "5-6",
volume = "60",
doi = "10.2298/HEMIND0606144V",
url = "conv_281"
}

Vidojković, V. M., Đorđević, N., Boljanac, T., Vlahović, M.,& Martinović, S.. (2006). Ispitivanje mogućnosti vezivanja čestica letećeg pepela iz termoelektrana elementarnim sumporom. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 60(5-6), 144-147.
https://doi.org/10.2298/HEMIND0606144V
conv_281

Vidojković VM, Đorđević N, Boljanac T, Vlahović M, Martinović S. Ispitivanje mogućnosti vezivanja čestica letećeg pepela iz termoelektrana elementarnim sumporom. in Hemijska industrija. 2006;60(5-6):144-147.
doi:10.2298/HEMIND0606144V
conv_281 .

Vidojković, Velislav M., Đorđević, Nataša, Boljanac, Tamara, Vlahović, M., Martinović, S., "Ispitivanje mogućnosti vezivanja čestica letećeg pepela iz termoelektrana elementarnim sumporom" in Hemijska industrija, 60, no. 5-6 (2006):144-147,
https://doi.org/10.2298/HEMIND0606144V .,
conv_281 .