TY  - CONF
AU  - Mihajlović, Slavica
AU  - Đorđević, Nataša
AU  - Patarić, Aleksandra
AU  - Blagojev, Marina
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/766
AB  - The paper shows how the exploitation of mineral resources may lead to environmental
degradation. Planning the exploitation of certain mineral raw materials requires a detailed analysis of all
the necessary works in order to fully eliminate or reduce to a minimum any negative impact on the area
where the mining activity is performed. Also, it is important to emphasize that natural resources are very
difficult to renew, so in case of uncontrolled exploitation, danger of permanent loss occurs. Therefore,
the exploitation of mineral raw materials should be based on the principles of sustainable development,
and the measures for the protection of the space where the exploitation is performed should be carried
out according to the prescribed rules and legal provisions.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - XIV International Mineral Processing and Recycling Conference (IMPRC 2021)
T1  - The impact of mineral resources exploitation on the environment
EP  - 429
SP  - 424
ER  - 

@conference{
author = "Mihajlović, Slavica and Đorđević, Nataša and Patarić, Aleksandra and Blagojev, Marina",
year = "2021",
abstract = "The paper shows how the exploitation of mineral resources may lead to environmental
degradation. Planning the exploitation of certain mineral raw materials requires a detailed analysis of all
the necessary works in order to fully eliminate or reduce to a minimum any negative impact on the area
where the mining activity is performed. Also, it is important to emphasize that natural resources are very
difficult to renew, so in case of uncontrolled exploitation, danger of permanent loss occurs. Therefore,
the exploitation of mineral raw materials should be based on the principles of sustainable development,
and the measures for the protection of the space where the exploitation is performed should be carried
out according to the prescribed rules and legal provisions.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "XIV International Mineral Processing and Recycling Conference (IMPRC 2021)",
title = "The impact of mineral resources exploitation on the environment",
pages = "429-424"
}

Mihajlović, S., Đorđević, N., Patarić, A.,& Blagojev, M.. (2021). The impact of mineral resources exploitation on the environment. in XIV International Mineral Processing and Recycling Conference (IMPRC 2021)
Bor : University of Belgrade, Technical Faculty in Bor., 424-429.

Mihajlović S, Đorđević N, Patarić A, Blagojev M. The impact of mineral resources exploitation on the environment. in XIV International Mineral Processing and Recycling Conference (IMPRC 2021). 2021;:424-429..

Mihajlović, Slavica, Đorđević, Nataša, Patarić, Aleksandra, Blagojev, Marina, "The impact of mineral resources exploitation on the environment" in XIV International Mineral Processing and Recycling Conference (IMPRC 2021) (2021):424-429.

TY  - JOUR
AU  - Mihajlović, Slavica
AU  - Đorđević, Nataša
AU  - Jovanović, Marina N.
AU  - Vlahović, Milica
AU  - Savić, Ljubinko
AU  - Patarić, Aleksandra
AU  - Blagojev, Marina S.
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/592
AB  - This work presents a grinding process of monoammonium phosphate (MAP) as an active component in a powder fire extinguisher (PFE). The aim was to determine the grinding time for reaching the optimal particle size of MAP necessary for permanent fire extinguishing. MAP grinding was performed by using a laboratory ceramic ball mill and a vibrating cup mill. The grinding process was controlled by sieving using a 100 mu m sieve at precisely defined time intervals. The efficiency of a PFE depends on the share of the-100 mu m fraction of the active component, which has to exceed 60 %. The optimal grain size with 64 % of fraction of particle size-100 mu m was obtained after 33 min of grinding of =3000 mu m mm grain size MAP by using a ball mill (single-stage grinding). In two-stage process, by grinding the same initial MAP sample (=3000 mu m) in the vibro mill for 10 min, powder with the upper limit grain size of 300 mu m and the mean grain diameter of 120 mu m was obtained. This sample with a reduced size was further ground in the ceramic ball mill yielding 67.5 % of the fraction of particle size 100 mu m after 19 min. The total time of the two-stage grinding process was 29 min. By analyzing the grinding time of MAP required to get the lowest required share of the fraction of particle size-100 mu m that provides the effectiveness of formed PFE it can be concluded that 64 % of this fraction was obtained after 33 min of single-stage grinding, while only after 26 min in the two-stage process. Thus, the grinding time was reduced by 7 min indicating certain energy savings. Stability and hydrophobicity of the obtained PFE were achieved by coating with magnesium stearate (MgSt) at the content of 2 % in a ball mill for 15 min. The coating was confirmed by the standardized procedure for verification of PFE hydrophobic properties in contact with water drops. To obtained PFE had component mass ratios of MAP:AS:CC:QS:MgSt=55:20:18:5:2 (AS-ammonium sulfate; CC-calcium carbonate, QS-quartz sand) and was further characterized by chemical and granulometric analyses. The fire extinguishing efficiency of the PFE was tested in controlled conditions, whereby fires were initiated by burning solid materials and flammable liquids. In both cases, immediate elimination of flames was achieved, thus proving the efficiency of the PFE obtained in this work for practical applications..
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Optimization of the active component grinding process and hydrophobization of the obtained powder fire extinguisher
EP  - 75
IS  - 2
SP  - 65
VL  - 75
DO  - 10.2298/HEMIND210114012M
UR  - conv_910
ER  - 

@article{
author = "Mihajlović, Slavica and Đorđević, Nataša and Jovanović, Marina N. and Vlahović, Milica and Savić, Ljubinko and Patarić, Aleksandra and Blagojev, Marina S.",
year = "2021",
abstract = "This work presents a grinding process of monoammonium phosphate (MAP) as an active component in a powder fire extinguisher (PFE). The aim was to determine the grinding time for reaching the optimal particle size of MAP necessary for permanent fire extinguishing. MAP grinding was performed by using a laboratory ceramic ball mill and a vibrating cup mill. The grinding process was controlled by sieving using a 100 mu m sieve at precisely defined time intervals. The efficiency of a PFE depends on the share of the-100 mu m fraction of the active component, which has to exceed 60 %. The optimal grain size with 64 % of fraction of particle size-100 mu m was obtained after 33 min of grinding of =3000 mu m mm grain size MAP by using a ball mill (single-stage grinding). In two-stage process, by grinding the same initial MAP sample (=3000 mu m) in the vibro mill for 10 min, powder with the upper limit grain size of 300 mu m and the mean grain diameter of 120 mu m was obtained. This sample with a reduced size was further ground in the ceramic ball mill yielding 67.5 % of the fraction of particle size 100 mu m after 19 min. The total time of the two-stage grinding process was 29 min. By analyzing the grinding time of MAP required to get the lowest required share of the fraction of particle size-100 mu m that provides the effectiveness of formed PFE it can be concluded that 64 % of this fraction was obtained after 33 min of single-stage grinding, while only after 26 min in the two-stage process. Thus, the grinding time was reduced by 7 min indicating certain energy savings. Stability and hydrophobicity of the obtained PFE were achieved by coating with magnesium stearate (MgSt) at the content of 2 % in a ball mill for 15 min. The coating was confirmed by the standardized procedure for verification of PFE hydrophobic properties in contact with water drops. To obtained PFE had component mass ratios of MAP:AS:CC:QS:MgSt=55:20:18:5:2 (AS-ammonium sulfate; CC-calcium carbonate, QS-quartz sand) and was further characterized by chemical and granulometric analyses. The fire extinguishing efficiency of the PFE was tested in controlled conditions, whereby fires were initiated by burning solid materials and flammable liquids. In both cases, immediate elimination of flames was achieved, thus proving the efficiency of the PFE obtained in this work for practical applications..",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Optimization of the active component grinding process and hydrophobization of the obtained powder fire extinguisher",
pages = "75-65",
number = "2",
volume = "75",
doi = "10.2298/HEMIND210114012M",
url = "conv_910"
}

Mihajlović, S., Đorđević, N., Jovanović, M. N., Vlahović, M., Savić, L., Patarić, A.,& Blagojev, M. S.. (2021). Optimization of the active component grinding process and hydrophobization of the obtained powder fire extinguisher. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 75(2), 65-75.
https://doi.org/10.2298/HEMIND210114012M
conv_910

Mihajlović S, Đorđević N, Jovanović MN, Vlahović M, Savić L, Patarić A, Blagojev MS. Optimization of the active component grinding process and hydrophobization of the obtained powder fire extinguisher. in Hemijska industrija. 2021;75(2):65-75.
doi:10.2298/HEMIND210114012M
conv_910 .

Mihajlović, Slavica, Đorđević, Nataša, Jovanović, Marina N., Vlahović, Milica, Savić, Ljubinko, Patarić, Aleksandra, Blagojev, Marina S., "Optimization of the active component grinding process and hydrophobization of the obtained powder fire extinguisher" in Hemijska industrija, 75, no. 2 (2021):65-75,
https://doi.org/10.2298/HEMIND210114012M .,
conv_910 .

TY  - CONF
AU  - Radulović, Dragan
AU  - Jovanović, Vladimir
AU  - Andrić, Ljubiša
AU  - Petrov, Milan
AU  - Todorović, Dejan
AU  - Blagojev, Marina
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1108
AB  - U ovom radu prikazani su rezulati određivanja Bondovog radnog indexa krečnjaka iz postrojenja za preradu krečnjaka “Carmeuse”- Ševarlije-Doboj. Bondov radni index je određivan na klasi krupnoće - 22+16mm, koja je jedan od proizvoda koji se dobija u postrojenju. Ova klasa je trebalo da predstavlja polaznu sirovinu za postupak mlevenja i proizvodnju punioca pa je stoga bilo bitno da se odredi Bondov radni index kao jedan od najvažnijih parametara usitnjavanja za bilo koju rudu.
PB  - Beograd : Privredna komora Srbije
C3  - 11. simpozijum sa međunarodnim učešćem "Rudarstvo 2020"
T1  - Uticaj krupnoće materijala u ulaznoj rudi i prozvodu mlevenja na vrednost bondovog radnog indeksa krečnjaka „Carmeuse“-Doboj
EP  - 54
SP  - 44
ER  - 

@conference{
author = "Radulović, Dragan and Jovanović, Vladimir and Andrić, Ljubiša and Petrov, Milan and Todorović, Dejan and Blagojev, Marina",
year = "2020",
abstract = "U ovom radu prikazani su rezulati određivanja Bondovog radnog indexa krečnjaka iz postrojenja za preradu krečnjaka “Carmeuse”- Ševarlije-Doboj. Bondov radni index je određivan na klasi krupnoće - 22+16mm, koja je jedan od proizvoda koji se dobija u postrojenju. Ova klasa je trebalo da predstavlja polaznu sirovinu za postupak mlevenja i proizvodnju punioca pa je stoga bilo bitno da se odredi Bondov radni index kao jedan od najvažnijih parametara usitnjavanja za bilo koju rudu.",
publisher = "Beograd : Privredna komora Srbije",
journal = "11. simpozijum sa međunarodnim učešćem "Rudarstvo 2020"",
title = "Uticaj krupnoće materijala u ulaznoj rudi i prozvodu mlevenja na vrednost bondovog radnog indeksa krečnjaka „Carmeuse“-Doboj",
pages = "54-44"
}

Radulović, D., Jovanović, V., Andrić, L., Petrov, M., Todorović, D.,& Blagojev, M.. (2020). Uticaj krupnoće materijala u ulaznoj rudi i prozvodu mlevenja na vrednost bondovog radnog indeksa krečnjaka „Carmeuse“-Doboj. in 11. simpozijum sa međunarodnim učešćem "Rudarstvo 2020"
Beograd : Privredna komora Srbije., 44-54.

Radulović D, Jovanović V, Andrić L, Petrov M, Todorović D, Blagojev M. Uticaj krupnoće materijala u ulaznoj rudi i prozvodu mlevenja na vrednost bondovog radnog indeksa krečnjaka „Carmeuse“-Doboj. in 11. simpozijum sa međunarodnim učešćem "Rudarstvo 2020". 2020;:44-54..

Radulović, Dragan, Jovanović, Vladimir, Andrić, Ljubiša, Petrov, Milan, Todorović, Dejan, Blagojev, Marina, "Uticaj krupnoće materijala u ulaznoj rudi i prozvodu mlevenja na vrednost bondovog radnog indeksa krečnjaka „Carmeuse“-Doboj" in 11. simpozijum sa međunarodnim učešćem "Rudarstvo 2020" (2020):44-54.

TY  - JOUR
AU  - Mihajlović, Slavica
AU  - Savić, Ljubinko
AU  - Radosavljević, Dragana
AU  - Savić, Ljiljana B.
AU  - Blagojev, Marina S.
AU  - Hredzák, Slavomír
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/545
AB  - This paper presents theoretical considerations and working parameters analyzes of hydrotransport during unstable flow. The variable flow of hydraulic mixture in installations causes unsteady operation and pipes spraying, pump damage, obturation in various sections of the pipeline, reduced capacity as well as higher operating costs. Using mathematical equations presented in this paper, such parameters of the hydraulic mixture, hydrotransport installation and control devices can be determined which protect system from possible clogging. Considering the fact that critical speed of hydraulic mixture depends on transported material grain size, mixture volume mass, diameter of pipeline and specific gravity of solid phase, it is possible to accurately analyze obturation in hydrotransport installations depending on those parameters. In order to prevent hydraulic impacts in hydrotransport installation pipelines, which value can be determined mathematically, it is necessary to adjust installation to hydromixture parameters and pump, or vice versa.
PB  - Univerzitet u Beogradu - Rudarsko-geološki fakultet, Beograd
T2  - Podzemni radovi
T1  - Theoretical analysis of hydromixture transport
EP  - 49
IS  - 37
SP  - 41
DO  - 10.5937/podrad2037041M
UR  - conv_232
ER  - 

@article{
author = "Mihajlović, Slavica and Savić, Ljubinko and Radosavljević, Dragana and Savić, Ljiljana B. and Blagojev, Marina S. and Hredzák, Slavomír",
year = "2020",
abstract = "This paper presents theoretical considerations and working parameters analyzes of hydrotransport during unstable flow. The variable flow of hydraulic mixture in installations causes unsteady operation and pipes spraying, pump damage, obturation in various sections of the pipeline, reduced capacity as well as higher operating costs. Using mathematical equations presented in this paper, such parameters of the hydraulic mixture, hydrotransport installation and control devices can be determined which protect system from possible clogging. Considering the fact that critical speed of hydraulic mixture depends on transported material grain size, mixture volume mass, diameter of pipeline and specific gravity of solid phase, it is possible to accurately analyze obturation in hydrotransport installations depending on those parameters. In order to prevent hydraulic impacts in hydrotransport installation pipelines, which value can be determined mathematically, it is necessary to adjust installation to hydromixture parameters and pump, or vice versa.",
publisher = "Univerzitet u Beogradu - Rudarsko-geološki fakultet, Beograd",
journal = "Podzemni radovi",
title = "Theoretical analysis of hydromixture transport",
pages = "49-41",
number = "37",
doi = "10.5937/podrad2037041M",
url = "conv_232"
}

Mihajlović, S., Savić, L., Radosavljević, D., Savić, L. B., Blagojev, M. S.,& Hredzák, S.. (2020). Theoretical analysis of hydromixture transport. in Podzemni radovi
Univerzitet u Beogradu - Rudarsko-geološki fakultet, Beograd.(37), 41-49.
https://doi.org/10.5937/podrad2037041M
conv_232

Mihajlović S, Savić L, Radosavljević D, Savić LB, Blagojev MS, Hredzák S. Theoretical analysis of hydromixture transport. in Podzemni radovi. 2020;(37):41-49.
doi:10.5937/podrad2037041M
conv_232 .

Mihajlović, Slavica, Savić, Ljubinko, Radosavljević, Dragana, Savić, Ljiljana B., Blagojev, Marina S., Hredzák, Slavomír, "Theoretical analysis of hydromixture transport" in Podzemni radovi, no. 37 (2020):41-49,
https://doi.org/10.5937/podrad2037041M .,
conv_232 .

TY  - CONF
AU  - Mihajlović, Slavica
AU  - Sekulić, Živko
AU  - Blagojev, Marina
AU  - Kašić, Vladan
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/668
AB  - To use quartz sand for water glass production, processing of raw quartz
sand is necessary. The objectives of processing are: achieving the required
granulometric composition, increasing the content of SiO2 and reducing the content
of impurities that lower its quality. The most frequently used method is the attrition
cleaning in combination with gravity and magnetic concentration. In order to
eliminate quartz sand impurities to a greater extent, it is approached to different
methods of preparing mineral raw materials, which depends of the content and
type of impurities as well as on the way they appear (as individual grains, surface
coatings on quartz grains or as a form of intergrowth with quartz). The size
reduction processes are used when it comes to sandstone or large-grained sand,
whereby the size decreases up to 0.6 mm. Besides that, washing, attrition
scrubbing, grading and also gravity, flotation, and magnetic concentration are
used. Desliming, washing, and grading procedures are used almost always
because there is clay present in the quartz raw material as impurities. The
scrubbing procedure in attrition machines is used when the quartz surface is
kaolinized and limonitised. The flotation concentration is used when in raw material
beside the quartz, there is mica and feldspar, with preceding washing and grading
procedures to eliminate the clay component. That is so-called „reverse“ flotation
consisting of flotating mica and feldspar is applied, and the pure quartz remains in
the pulp. The magnetic separation process is used when in quartz raw material are
also magnetic impurities type Fe2O3 as carriers of total iron. Efficacy of the removal
of iron is expressed as a rate of reduction of Fe2O3. In the company „Kesogradnja
d.o.o.“ at Kozluk, near Zvornik (Republic of Srpska) from quartz sand deposit
„Bijela Stijena Skočić“, quartz sand for the production of water glass was obtained
by the procedures of washing, grinding, sizing and magnetic separation.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 4th Metallurgical & Materials Engineering Congress of South-East Europe 2019 - MMESEE 2019
T1  - Quartz sand processing methods for the application in water glass production
EP  - 49
SP  - 49
ER  - 

@conference{
author = "Mihajlović, Slavica and Sekulić, Živko and Blagojev, Marina and Kašić, Vladan",
year = "2019",
abstract = "To use quartz sand for water glass production, processing of raw quartz
sand is necessary. The objectives of processing are: achieving the required
granulometric composition, increasing the content of SiO2 and reducing the content
of impurities that lower its quality. The most frequently used method is the attrition
cleaning in combination with gravity and magnetic concentration. In order to
eliminate quartz sand impurities to a greater extent, it is approached to different
methods of preparing mineral raw materials, which depends of the content and
type of impurities as well as on the way they appear (as individual grains, surface
coatings on quartz grains or as a form of intergrowth with quartz). The size
reduction processes are used when it comes to sandstone or large-grained sand,
whereby the size decreases up to 0.6 mm. Besides that, washing, attrition
scrubbing, grading and also gravity, flotation, and magnetic concentration are
used. Desliming, washing, and grading procedures are used almost always
because there is clay present in the quartz raw material as impurities. The
scrubbing procedure in attrition machines is used when the quartz surface is
kaolinized and limonitised. The flotation concentration is used when in raw material
beside the quartz, there is mica and feldspar, with preceding washing and grading
procedures to eliminate the clay component. That is so-called „reverse“ flotation
consisting of flotating mica and feldspar is applied, and the pure quartz remains in
the pulp. The magnetic separation process is used when in quartz raw material are
also magnetic impurities type Fe2O3 as carriers of total iron. Efficacy of the removal
of iron is expressed as a rate of reduction of Fe2O3. In the company „Kesogradnja
d.o.o.“ at Kozluk, near Zvornik (Republic of Srpska) from quartz sand deposit
„Bijela Stijena Skočić“, quartz sand for the production of water glass was obtained
by the procedures of washing, grinding, sizing and magnetic separation.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "4th Metallurgical & Materials Engineering Congress of South-East Europe 2019 - MMESEE 2019",
title = "Quartz sand processing methods for the application in water glass production",
pages = "49-49"
}

Mihajlović, S., Sekulić, Ž., Blagojev, M.,& Kašić, V.. (2019). Quartz sand processing methods for the application in water glass production. in 4th Metallurgical & Materials Engineering Congress of South-East Europe 2019 - MMESEE 2019
Belgrade : Association of Metallurgical Engineers of Serbia., 49-49.

Mihajlović S, Sekulić Ž, Blagojev M, Kašić V. Quartz sand processing methods for the application in water glass production. in 4th Metallurgical & Materials Engineering Congress of South-East Europe 2019 - MMESEE 2019. 2019;:49-49..

Mihajlović, Slavica, Sekulić, Živko, Blagojev, Marina, Kašić, Vladan, "Quartz sand processing methods for the application in water glass production" in 4th Metallurgical & Materials Engineering Congress of South-East Europe 2019 - MMESEE 2019 (2019):49-49.

TY  - CONF
AU  - Mihajlović, Slavica
AU  - Blagojev, Marina
AU  - Sekulić, Živko
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/688
AB  - Zaštita životne sredine je izuzetno važana u svim zemljama i u direktnoj je vezi sa stepenom
ekonomskog razvoja i nivoa edukacije stanovništa o značaju zdrave životne sredine i načinu njenog
očuvanja. Ubrzani tehnološki razvoj dovodi do poboljšanja kvaliteta života u svim sferama ljudske
aktivnosti, ali paralelno sa tim stvara se mogućnost veće degradacije životne sredine. Zbog toga je
važno analizirati negativan uticaj svih primenjenih tehničko-tehnoloških procesa kao i elemente
kontrolisanog korišćenje prirodnih resursa i energije, kako bi se na vreme usvojila strategija i
definisale aktivnosti u cilju sprovođenja adekvatnih mera zaštite životne sredine. Jedan od od velikih
problema u zaštiti životne sredine je pojava emisije gasova sa efektom staklene bašte. Svetske
organizacije koje se bave zaštitom životne sredine pružaju veliki podsticaj za razvoj i stvaranje boljih,
inovativnijih održivih rešenja u građevinarstvu. Tako je jedan od prioriteta proizvođača cementa
pronalaženje novih načina za daljim smanjenjem potrošnje energije i emisije CO2 koja je najveća u
fazi proizvodnje klinkera (proizvod procesa pečenja cementa prilikom spravljanja portland cementa).
Tako neprekidno nastaju nova rešenja koja smanjuju količinu klinkera dok u isto vreme potenciraju
upotrebu alternativnih materijala. Materijali koji mogu zameniti upotrebu cementa (supplementary
cementitious materials- SCM), kao i mešavine cementa nude prednosti u boljim karakteristikama i
održivosti za one koji grade i one koji koriste građevine svih vrsta. Prednosti su, ne samo u
dugotrajnijem betonu boljeg kvaliteta, već i u manjoj potrošnji energije i emisije gasova sa efektom
staklene bašte.
PB  - Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina
C3  - X Simpozijum sa međunarodnim učešćem „Rudarstvo 2019“
T1  - Aktivnosti na smanjenju emisije gasova sa efektom staklene bašte
T1  - Activities in order to reduce gas emission with effect of greenhouse
EP  - 56
SP  - 49
ER  - 

@conference{
author = "Mihajlović, Slavica and Blagojev, Marina and Sekulić, Živko",
year = "2019",
abstract = "Zaštita životne sredine je izuzetno važana u svim zemljama i u direktnoj je vezi sa stepenom
ekonomskog razvoja i nivoa edukacije stanovništa o značaju zdrave životne sredine i načinu njenog
očuvanja. Ubrzani tehnološki razvoj dovodi do poboljšanja kvaliteta života u svim sferama ljudske
aktivnosti, ali paralelno sa tim stvara se mogućnost veće degradacije životne sredine. Zbog toga je
važno analizirati negativan uticaj svih primenjenih tehničko-tehnoloških procesa kao i elemente
kontrolisanog korišćenje prirodnih resursa i energije, kako bi se na vreme usvojila strategija i
definisale aktivnosti u cilju sprovođenja adekvatnih mera zaštite životne sredine. Jedan od od velikih
problema u zaštiti životne sredine je pojava emisije gasova sa efektom staklene bašte. Svetske
organizacije koje se bave zaštitom životne sredine pružaju veliki podsticaj za razvoj i stvaranje boljih,
inovativnijih održivih rešenja u građevinarstvu. Tako je jedan od prioriteta proizvođača cementa
pronalaženje novih načina za daljim smanjenjem potrošnje energije i emisije CO2 koja je najveća u
fazi proizvodnje klinkera (proizvod procesa pečenja cementa prilikom spravljanja portland cementa).
Tako neprekidno nastaju nova rešenja koja smanjuju količinu klinkera dok u isto vreme potenciraju
upotrebu alternativnih materijala. Materijali koji mogu zameniti upotrebu cementa (supplementary
cementitious materials- SCM), kao i mešavine cementa nude prednosti u boljim karakteristikama i
održivosti za one koji grade i one koji koriste građevine svih vrsta. Prednosti su, ne samo u
dugotrajnijem betonu boljeg kvaliteta, već i u manjoj potrošnji energije i emisije gasova sa efektom
staklene bašte.",
publisher = "Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina",
journal = "X Simpozijum sa međunarodnim učešćem „Rudarstvo 2019“",
title = "Aktivnosti na smanjenju emisije gasova sa efektom staklene bašte, Activities in order to reduce gas emission with effect of greenhouse",
pages = "56-49"
}

Mihajlović, S., Blagojev, M.,& Sekulić, Ž.. (2019). Aktivnosti na smanjenju emisije gasova sa efektom staklene bašte. in X Simpozijum sa međunarodnim učešćem „Rudarstvo 2019“
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina., 49-56.

Mihajlović S, Blagojev M, Sekulić Ž. Aktivnosti na smanjenju emisije gasova sa efektom staklene bašte. in X Simpozijum sa međunarodnim učešćem „Rudarstvo 2019“. 2019;:49-56..

Mihajlović, Slavica, Blagojev, Marina, Sekulić, Živko, "Aktivnosti na smanjenju emisije gasova sa efektom staklene bašte" in X Simpozijum sa međunarodnim učešćem „Rudarstvo 2019“ (2019):49-56.

TY  - CONF
AU  - Mihajlović, Slavica
AU  - Blagojev, Marina
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/689
AB  - Prirodni resursi su ograničeni i njihova nekontrolisana eksploatacija može imati
negativne posledice na životnu sredinu. Zbog toga je neophodno pronaći načine za njihovo održivo
korišćenje. Održivi razvoj je okvir za oblikovanje politika i strategija kontinualnog državnog i
socijalnog napretka, bez štete za okolinu i prirodne izvore bitne za ljudske delatnosti u budućnosti.
Jedan od modela kojim se reguliše održivo korišćenje je niz strategija i zakonskih regulativa koje
uređuju oblast eksploatacije prirodnih resursa i energije. Osnovni cilj je osigurati održivo
korišćenje prirodnih izvora kako na nacionalnom tako i na međunarodnom, globalnom, nivou.
Održivo korišćenje prirodnih resursa je u direktnoj vezi sa zaštitom životne sredine. Takođe,
očuvanje radne i životne sredine je povezano sa stepenom ekonomskog razvoja i nivoa edukacije
stanovništa o značaju zdrave životne sredine i načinu njenog očuvanja. Ubrzani tehnološki razvoj
dovodi do poboljšanja kvaliteta života u svim sferama ljudskih aktivnosti, ali paralelno sa tim
stvara se mogućnost veće degradacije životne sredine. Zbog toga je neophodno da se u okviru
ciljeva razvojne politike društva uvrste i pravilni kriterijumi koji će doprinositi održivom razvoju.
Samo na taj način doprinosimo očuvanju životne sredine i eliminisanju svih akcidentnih situacija
koje ugrožavaju ravnotežu prirodnih ekosistema.
PB  - Beograd : Beogradska politehnika
C3  - V naučno-stručni skup sa međunarodnim učešćem „Politehnika“
T1  - Eksploatacija prirodnih resursa u funkciji održivog razvoja
EP  - 192
SP  - 188
ER  - 

@conference{
author = "Mihajlović, Slavica and Blagojev, Marina",
year = "2019",
abstract = "Prirodni resursi su ograničeni i njihova nekontrolisana eksploatacija može imati
negativne posledice na životnu sredinu. Zbog toga je neophodno pronaći načine za njihovo održivo
korišćenje. Održivi razvoj je okvir za oblikovanje politika i strategija kontinualnog državnog i
socijalnog napretka, bez štete za okolinu i prirodne izvore bitne za ljudske delatnosti u budućnosti.
Jedan od modela kojim se reguliše održivo korišćenje je niz strategija i zakonskih regulativa koje
uređuju oblast eksploatacije prirodnih resursa i energije. Osnovni cilj je osigurati održivo
korišćenje prirodnih izvora kako na nacionalnom tako i na međunarodnom, globalnom, nivou.
Održivo korišćenje prirodnih resursa je u direktnoj vezi sa zaštitom životne sredine. Takođe,
očuvanje radne i životne sredine je povezano sa stepenom ekonomskog razvoja i nivoa edukacije
stanovništa o značaju zdrave životne sredine i načinu njenog očuvanja. Ubrzani tehnološki razvoj
dovodi do poboljšanja kvaliteta života u svim sferama ljudskih aktivnosti, ali paralelno sa tim
stvara se mogućnost veće degradacije životne sredine. Zbog toga je neophodno da se u okviru
ciljeva razvojne politike društva uvrste i pravilni kriterijumi koji će doprinositi održivom razvoju.
Samo na taj način doprinosimo očuvanju životne sredine i eliminisanju svih akcidentnih situacija
koje ugrožavaju ravnotežu prirodnih ekosistema.",
publisher = "Beograd : Beogradska politehnika",
journal = "V naučno-stručni skup sa međunarodnim učešćem „Politehnika“",
title = "Eksploatacija prirodnih resursa u funkciji održivog razvoja",
pages = "192-188"
}

Mihajlović, S.,& Blagojev, M.. (2019). Eksploatacija prirodnih resursa u funkciji održivog razvoja. in V naučno-stručni skup sa međunarodnim učešćem „Politehnika“
Beograd : Beogradska politehnika., 188-192.

Mihajlović S, Blagojev M. Eksploatacija prirodnih resursa u funkciji održivog razvoja. in V naučno-stručni skup sa međunarodnim učešćem „Politehnika“. 2019;:188-192..

Mihajlović, Slavica, Blagojev, Marina, "Eksploatacija prirodnih resursa u funkciji održivog razvoja" in V naučno-stručni skup sa međunarodnim učešćem „Politehnika“ (2019):188-192.

TY  - CONF
AU  - Mihajlović, Slavica
AU  - Blagojev, Marina
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/711
AB  - Rapid technological development leads to an improvement in the quality of life in all spheres of human activity, but at the same time it creates environmental degradation. Therefore, it is important to analyze the negative impact of technological processes, in order to adopt the strategy and define activities for implementation adequate environmental protection rates. One of the major problems in environmental protection is the emergence of greenhouse gas emissions. The world's organizations dealing with environmental protection provide a great stimulus for the development of innovative sustainable solutions in the construction industry. Thus, one of the priorities in cement industry is finding new ways to reduce energy consumption and CO2 emissions with point on clinker production plants as the biggest CO2 emitter (the product of the baking process during the portland cement process). In such a way new solutions reduce the amount of clinker, while at the same time, they encourage the use of alternative materials. Materials that can replace the use of cement (supplementary cementitious materials - SCM) as well as mixtures of cement, offer advantages in better characteristics, lower energy consumption and emissions of gases that produce greenhouse effect.
PB  - Košice : Slovenská banícka spoločnosť - ZSVTS Základná organizácia pri Ústave geotechniky SAV
C3  - XXVIII Scientific Symposium with International Participation "Situation in ecologically loaded regions of Slovakia and Central Europe“
T1  - Potential ways to lower CO2 emission for cement production
EP  - 88
SP  - 84
ER  - 

@conference{
author = "Mihajlović, Slavica and Blagojev, Marina",
year = "2019",
abstract = "Rapid technological development leads to an improvement in the quality of life in all spheres of human activity, but at the same time it creates environmental degradation. Therefore, it is important to analyze the negative impact of technological processes, in order to adopt the strategy and define activities for implementation adequate environmental protection rates. One of the major problems in environmental protection is the emergence of greenhouse gas emissions. The world's organizations dealing with environmental protection provide a great stimulus for the development of innovative sustainable solutions in the construction industry. Thus, one of the priorities in cement industry is finding new ways to reduce energy consumption and CO2 emissions with point on clinker production plants as the biggest CO2 emitter (the product of the baking process during the portland cement process). In such a way new solutions reduce the amount of clinker, while at the same time, they encourage the use of alternative materials. Materials that can replace the use of cement (supplementary cementitious materials - SCM) as well as mixtures of cement, offer advantages in better characteristics, lower energy consumption and emissions of gases that produce greenhouse effect.",
publisher = "Košice : Slovenská banícka spoločnosť - ZSVTS Základná organizácia pri Ústave geotechniky SAV",
journal = "XXVIII Scientific Symposium with International Participation "Situation in ecologically loaded regions of Slovakia and Central Europe“",
title = "Potential ways to lower CO2 emission for cement production",
pages = "88-84"
}

Mihajlović, S.,& Blagojev, M.. (2019). Potential ways to lower CO2 emission for cement production. in XXVIII Scientific Symposium with International Participation "Situation in ecologically loaded regions of Slovakia and Central Europe“
Košice : Slovenská banícka spoločnosť - ZSVTS Základná organizácia pri Ústave geotechniky SAV., 84-88.

Mihajlović S, Blagojev M. Potential ways to lower CO2 emission for cement production. in XXVIII Scientific Symposium with International Participation "Situation in ecologically loaded regions of Slovakia and Central Europe“. 2019;:84-88..

Mihajlović, Slavica, Blagojev, Marina, "Potential ways to lower CO2 emission for cement production" in XXVIII Scientific Symposium with International Participation "Situation in ecologically loaded regions of Slovakia and Central Europe“ (2019):84-88.

TY  - JOUR
AU  - Mihajlović, Slavica
AU  - Sekulić, Živko
AU  - Kašić, Vladan
AU  - Sokić, Miroslav
AU  - Blagojev, Marina S.
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/518
AB  - Geološka istraživanja na području centralne Srbije, u reonu opštine Rekovac pokazala su prisustvo pojave krečnjaka "Sibnička Čukara". Krečnjak je sirovina koja ima primenu u različitim industrijskim granama kao što su: industrija kreča, šećera, stočne hrane, mineralnih đubriva, farmacija, u metalurgiji i dr. U kojim industrijskim granama ova sirovina može da ima primenu nakon određenih postupaka pripreme, zavisi od njenog kvaliteta. Preliminarna laboratorijska ispitivanja i karakterizacija pojedinih asortimana dobijenih iz krečnjaka "Sibnička Čukara" su potvrdila mogućnost primene u sledećim oblastima: drobljenog krečnjaka u proizvodnji kreča i šećera i u metalurgiji kao II klasa, mlevenog kao punilo za asfalt, kao dodatak stočnoj hrani, ali samo za svinje koje su starije od 16 nedelja zbog sadržaja teških metala, kao sredstvo u proizvodnji mineralnog đubriva i za odsumporavanje dimnih gasova.
AB  - Geological research carried out in the area of Central Serbia, municipality of Rekovac, showed the presence of limestone"Sibnička Čukara". Limestone is a raw material that has been used in various industrial branches such as: industry of lime, sugar, green-foder, mineral fertilizers, also in farmacy, metallurgy, etc. This raw material can have application in various industrial branches, which depends on its quality. Preliminary laboratory tests and characterization of certain limestone assortments obtained from "Sibnička Čukara" confirmed the possibility of application in the following areas: crushed limestone in the production of lime and sugar, in metallurgy as a second-class material, crushed limestone as a filler for asphalt and animal feed (but only for pigs older than 16 weeks, due to the content of heavy metals), then as an agent for production of mineral fertilizers and thereupon for flue-gas desulfurization.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Preliminarna ispitivanja i ocena primenjivosti krečnjaka "Sibnička Čukara" - opština Rekovac
T1  - Preliminary examinations and possible application of limestone "Sibnička Čukara" - municipality of Rekovac
EP  - 387
IS  - 3
SP  - 378
VL  - 74
DO  - 10.5937/tehnika1903378M
UR  - conv_26
ER  - 

@article{
author = "Mihajlović, Slavica and Sekulić, Živko and Kašić, Vladan and Sokić, Miroslav and Blagojev, Marina S.",
year = "2019",
abstract = "Geološka istraživanja na području centralne Srbije, u reonu opštine Rekovac pokazala su prisustvo pojave krečnjaka "Sibnička Čukara". Krečnjak je sirovina koja ima primenu u različitim industrijskim granama kao što su: industrija kreča, šećera, stočne hrane, mineralnih đubriva, farmacija, u metalurgiji i dr. U kojim industrijskim granama ova sirovina može da ima primenu nakon određenih postupaka pripreme, zavisi od njenog kvaliteta. Preliminarna laboratorijska ispitivanja i karakterizacija pojedinih asortimana dobijenih iz krečnjaka "Sibnička Čukara" su potvrdila mogućnost primene u sledećim oblastima: drobljenog krečnjaka u proizvodnji kreča i šećera i u metalurgiji kao II klasa, mlevenog kao punilo za asfalt, kao dodatak stočnoj hrani, ali samo za svinje koje su starije od 16 nedelja zbog sadržaja teških metala, kao sredstvo u proizvodnji mineralnog đubriva i za odsumporavanje dimnih gasova., Geological research carried out in the area of Central Serbia, municipality of Rekovac, showed the presence of limestone"Sibnička Čukara". Limestone is a raw material that has been used in various industrial branches such as: industry of lime, sugar, green-foder, mineral fertilizers, also in farmacy, metallurgy, etc. This raw material can have application in various industrial branches, which depends on its quality. Preliminary laboratory tests and characterization of certain limestone assortments obtained from "Sibnička Čukara" confirmed the possibility of application in the following areas: crushed limestone in the production of lime and sugar, in metallurgy as a second-class material, crushed limestone as a filler for asphalt and animal feed (but only for pigs older than 16 weeks, due to the content of heavy metals), then as an agent for production of mineral fertilizers and thereupon for flue-gas desulfurization.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Preliminarna ispitivanja i ocena primenjivosti krečnjaka "Sibnička Čukara" - opština Rekovac, Preliminary examinations and possible application of limestone "Sibnička Čukara" - municipality of Rekovac",
pages = "387-378",
number = "3",
volume = "74",
doi = "10.5937/tehnika1903378M",
url = "conv_26"
}

Mihajlović, S., Sekulić, Ž., Kašić, V., Sokić, M.,& Blagojev, M. S.. (2019). Preliminarna ispitivanja i ocena primenjivosti krečnjaka "Sibnička Čukara" - opština Rekovac. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 74(3), 378-387.
https://doi.org/10.5937/tehnika1903378M
conv_26

Mihajlović S, Sekulić Ž, Kašić V, Sokić M, Blagojev MS. Preliminarna ispitivanja i ocena primenjivosti krečnjaka "Sibnička Čukara" - opština Rekovac. in Tehnika. 2019;74(3):378-387.
doi:10.5937/tehnika1903378M
conv_26 .

Mihajlović, Slavica, Sekulić, Živko, Kašić, Vladan, Sokić, Miroslav, Blagojev, Marina S., "Preliminarna ispitivanja i ocena primenjivosti krečnjaka "Sibnička Čukara" - opština Rekovac" in Tehnika, 74, no. 3 (2019):378-387,
https://doi.org/10.5937/tehnika1903378M .,
conv_26 .

TY  - JOUR
AU  - Mihajlović, Slavica
AU  - Sekulić, Živko
AU  - Blagojev, Marina S.
AU  - Ignjatović, Miroslav R.
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/516
AB  - The paper presents the process of quartz sand processing from the "Bijela Stijena" - Skocic deposit in the plant "Kesogradnja d.o.o." at Kozluk near Zvornik, Republic of Srpska. Bearing in mind the fact that this quartz sand is used for water glass production in the company "Birac" - Zvornik or "Alumina" Zvornik, it was necessary to meet the quality requirements prescribed by that industrial production. Thus, the required size was -0.4+0.05 mm and the Fe2O3 content was maximum of 0.04%. Based on the laboratory tests, a technological scheme for the quartz raw material valorization was conceived in the separation of the company "Kesogradnja d.o.o.". The obtained results showed that quartz sand for water glass size fraction -0.4+0.05 mm could be obtained in the plant. Also, by introducing a magnetic concentration after washing and grading, the Fe2O3 content was reduced from 0.131% as it is in the initial sample to 0.038% which meets the required conditions from the water glass producers.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - The process of obtaining quartz sand size fraction -0.4
EP  - 68
IS  - 1
SP  - 59
VL  - 25
DO  - 10.30544/406
UR  - conv_849
ER  - 

@article{
author = "Mihajlović, Slavica and Sekulić, Živko and Blagojev, Marina S. and Ignjatović, Miroslav R.",
year = "2019",
abstract = "The paper presents the process of quartz sand processing from the "Bijela Stijena" - Skocic deposit in the plant "Kesogradnja d.o.o." at Kozluk near Zvornik, Republic of Srpska. Bearing in mind the fact that this quartz sand is used for water glass production in the company "Birac" - Zvornik or "Alumina" Zvornik, it was necessary to meet the quality requirements prescribed by that industrial production. Thus, the required size was -0.4+0.05 mm and the Fe2O3 content was maximum of 0.04%. Based on the laboratory tests, a technological scheme for the quartz raw material valorization was conceived in the separation of the company "Kesogradnja d.o.o.". The obtained results showed that quartz sand for water glass size fraction -0.4+0.05 mm could be obtained in the plant. Also, by introducing a magnetic concentration after washing and grading, the Fe2O3 content was reduced from 0.131% as it is in the initial sample to 0.038% which meets the required conditions from the water glass producers.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "The process of obtaining quartz sand size fraction -0.4",
pages = "68-59",
number = "1",
volume = "25",
doi = "10.30544/406",
url = "conv_849"
}

Mihajlović, S., Sekulić, Ž., Blagojev, M. S.,& Ignjatović, M. R.. (2019). The process of obtaining quartz sand size fraction -0.4. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 25(1), 59-68.
https://doi.org/10.30544/406
conv_849

Mihajlović S, Sekulić Ž, Blagojev MS, Ignjatović MR. The process of obtaining quartz sand size fraction -0.4. in Metallurgical & Materials Engineering. 2019;25(1):59-68.
doi:10.30544/406
conv_849 .

Mihajlović, Slavica, Sekulić, Živko, Blagojev, Marina S., Ignjatović, Miroslav R., "The process of obtaining quartz sand size fraction -0.4" in Metallurgical & Materials Engineering, 25, no. 1 (2019):59-68,
https://doi.org/10.30544/406 .,
conv_849 .

TY  - JOUR
AU  - Mihajlović, Slavica
AU  - Savić, Ljubinko
AU  - Radosavljević, Dragana B.
AU  - Savić, Ljiljana B.
AU  - Ignjatović, Miroslav R.
AU  - Blagojev, Marina S.
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/500
AB  - The main problem of hydraulic transport is the resistance generated during the mixture transport through the pipe-line. Testing the flow characteristics of mixtures, shown in this paper, are based on the principles of determining the unit energy losses by a mathematical calculation using the non-linear regression - the Levenberg-Marquardt algorithm. Such obtained results allow determining a transport rate in the horizontal pipe-line, depending on the mixture bulk density and pipe-line diameter. The flotation tailings is mainly used as a filling material in the mine "Trepca" - Stari Trg. According to the grain size distribution, it is a fine-grained material of a size of 0.074 mm to 1.2 mm. It is a multicomponent material containing pyrite, pyrrhotine and other heavy metals, and therefore, has a high bulk mass. The average rate of the hydromixture, in which the energy losses reach the minimum value, depends on the pipe-line diameter and kinetic bulk density of the mixture. For the test interval of change in the pipe-line diameter, shown in this paper (0.168 mm, 0.176 mm, 0.193 mm, and 0.225 mm), and kinetic bulk density of the hydraulic mixture (1-1.6 kg/m(3)), this rate ranges from 3-5.5 m/s. The increase of the energy losses in the hydraulic mixture transport increases proportionality with the increase of its kinetic bulk density. The results, presented in this paper, show that the required bulk density of 1.6 kg/m(3) should be accepted as a limit from a point of view of the hydraulic transport cost-efficiency.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - the non-linear regression - the levenberg-marquardt algorithm for assumption the energy losses of hydraulic transport in a case of the mine "trepca"
EP  - 2938
IS  - 5
SP  - 2929
VL  - 23
DO  - 10.2298/TSCI180608252M
UR  - conv_866
ER  - 

@article{
author = "Mihajlović, Slavica and Savić, Ljubinko and Radosavljević, Dragana B. and Savić, Ljiljana B. and Ignjatović, Miroslav R. and Blagojev, Marina S.",
year = "2019",
abstract = "The main problem of hydraulic transport is the resistance generated during the mixture transport through the pipe-line. Testing the flow characteristics of mixtures, shown in this paper, are based on the principles of determining the unit energy losses by a mathematical calculation using the non-linear regression - the Levenberg-Marquardt algorithm. Such obtained results allow determining a transport rate in the horizontal pipe-line, depending on the mixture bulk density and pipe-line diameter. The flotation tailings is mainly used as a filling material in the mine "Trepca" - Stari Trg. According to the grain size distribution, it is a fine-grained material of a size of 0.074 mm to 1.2 mm. It is a multicomponent material containing pyrite, pyrrhotine and other heavy metals, and therefore, has a high bulk mass. The average rate of the hydromixture, in which the energy losses reach the minimum value, depends on the pipe-line diameter and kinetic bulk density of the mixture. For the test interval of change in the pipe-line diameter, shown in this paper (0.168 mm, 0.176 mm, 0.193 mm, and 0.225 mm), and kinetic bulk density of the hydraulic mixture (1-1.6 kg/m(3)), this rate ranges from 3-5.5 m/s. The increase of the energy losses in the hydraulic mixture transport increases proportionality with the increase of its kinetic bulk density. The results, presented in this paper, show that the required bulk density of 1.6 kg/m(3) should be accepted as a limit from a point of view of the hydraulic transport cost-efficiency.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "the non-linear regression - the levenberg-marquardt algorithm for assumption the energy losses of hydraulic transport in a case of the mine "trepca"",
pages = "2938-2929",
number = "5",
volume = "23",
doi = "10.2298/TSCI180608252M",
url = "conv_866"
}

Mihajlović, S., Savić, L., Radosavljević, D. B., Savić, L. B., Ignjatović, M. R.,& Blagojev, M. S.. (2019). the non-linear regression - the levenberg-marquardt algorithm for assumption the energy losses of hydraulic transport in a case of the mine "trepca". in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 23(5), 2929-2938.
https://doi.org/10.2298/TSCI180608252M
conv_866

Mihajlović S, Savić L, Radosavljević DB, Savić LB, Ignjatović MR, Blagojev MS. the non-linear regression - the levenberg-marquardt algorithm for assumption the energy losses of hydraulic transport in a case of the mine "trepca". in Thermal Science. 2019;23(5):2929-2938.
doi:10.2298/TSCI180608252M
conv_866 .

Mihajlović, Slavica, Savić, Ljubinko, Radosavljević, Dragana B., Savić, Ljiljana B., Ignjatović, Miroslav R., Blagojev, Marina S., "the non-linear regression - the levenberg-marquardt algorithm for assumption the energy losses of hydraulic transport in a case of the mine "trepca"" in Thermal Science, 23, no. 5 (2019):2929-2938,
https://doi.org/10.2298/TSCI180608252M .,
conv_866 .

TY  - JOUR
AU  - Mihajlović, Slavica
AU  - Sekulić, Živko
AU  - Stojanović, Jovica
AU  - Kašić, Vladan
AU  - Sokić, Miroslav
AU  - Blagojev, Marina S.
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/493
AB  - Quality of raw materials, including quartz sand and quartzite, varies from one deposit to another. Furthermore, the material quality determines in which industrial branches it can be used after certain preparation processes. Potential applications of quartz raw materials are: in the construction and refractory industry, ceramics and glass industry, then in metallurgy, foundry and also in production of water treatment filters. Geological investigations of the central Serbia region, in the Rekovac municipality, resulted in identification of occurrence of quartz sand ("Ursula") and quartzite ("Velika Krusevica"). Preliminary laboratory tests and characterization of the quartz sand size fraction -0.63+0.1 mm confirmed the possibility of applying this size fraction in the construction materials industry, while the quartzite can be used in refractory, glass and metallurgy industries. After determining the geological reserve of quartz sand "Ursula" and quartzite "Velika Krusevica", detailed investigations are required. Quality conditions from the aspect of chemical composition and physical properties of quartz sand and quartzite are mostly clearly defined by a special standard for this purpose. On the other hand, there are also application areas where standards does not exist, but users define their quality conditions. This example is with the application of quartz sand in the production of water glass. Chemical composition as well is not always the determining factor for the application of quartz raw material. For example, for quartz sand used for sandblasting, grain form is essential. From the economic analysis point of view, the prices of quartz raw materials vary depending on their chemical and physical properties. After all, what needs to be pointed out is the fact that these raw materials are very widespread in nature and that their exploitation is quite simple. After the raw material is excavated, it is stored and further sieved, washed, dried and processed according to customer requirements. All of these processes are cheaper than preparing, for example, limestone, and significaly cheaper than preparation of metal ores.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Investigations of quartz raw materials from the locality of Rekovac muncipality
EP  - 274
IS  - 4
SP  - 265
VL  - 73
DO  - 10.2298/HEMIND190328023M
UR  - conv_859
ER  - 

@article{
author = "Mihajlović, Slavica and Sekulić, Živko and Stojanović, Jovica and Kašić, Vladan and Sokić, Miroslav and Blagojev, Marina S.",
year = "2019",
abstract = "Quality of raw materials, including quartz sand and quartzite, varies from one deposit to another. Furthermore, the material quality determines in which industrial branches it can be used after certain preparation processes. Potential applications of quartz raw materials are: in the construction and refractory industry, ceramics and glass industry, then in metallurgy, foundry and also in production of water treatment filters. Geological investigations of the central Serbia region, in the Rekovac municipality, resulted in identification of occurrence of quartz sand ("Ursula") and quartzite ("Velika Krusevica"). Preliminary laboratory tests and characterization of the quartz sand size fraction -0.63+0.1 mm confirmed the possibility of applying this size fraction in the construction materials industry, while the quartzite can be used in refractory, glass and metallurgy industries. After determining the geological reserve of quartz sand "Ursula" and quartzite "Velika Krusevica", detailed investigations are required. Quality conditions from the aspect of chemical composition and physical properties of quartz sand and quartzite are mostly clearly defined by a special standard for this purpose. On the other hand, there are also application areas where standards does not exist, but users define their quality conditions. This example is with the application of quartz sand in the production of water glass. Chemical composition as well is not always the determining factor for the application of quartz raw material. For example, for quartz sand used for sandblasting, grain form is essential. From the economic analysis point of view, the prices of quartz raw materials vary depending on their chemical and physical properties. After all, what needs to be pointed out is the fact that these raw materials are very widespread in nature and that their exploitation is quite simple. After the raw material is excavated, it is stored and further sieved, washed, dried and processed according to customer requirements. All of these processes are cheaper than preparing, for example, limestone, and significaly cheaper than preparation of metal ores.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Investigations of quartz raw materials from the locality of Rekovac muncipality",
pages = "274-265",
number = "4",
volume = "73",
doi = "10.2298/HEMIND190328023M",
url = "conv_859"
}

Mihajlović, S., Sekulić, Ž., Stojanović, J., Kašić, V., Sokić, M.,& Blagojev, M. S.. (2019). Investigations of quartz raw materials from the locality of Rekovac muncipality. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 73(4), 265-274.
https://doi.org/10.2298/HEMIND190328023M
conv_859

Mihajlović S, Sekulić Ž, Stojanović J, Kašić V, Sokić M, Blagojev MS. Investigations of quartz raw materials from the locality of Rekovac muncipality. in Hemijska industrija. 2019;73(4):265-274.
doi:10.2298/HEMIND190328023M
conv_859 .

Mihajlović, Slavica, Sekulić, Živko, Stojanović, Jovica, Kašić, Vladan, Sokić, Miroslav, Blagojev, Marina S., "Investigations of quartz raw materials from the locality of Rekovac muncipality" in Hemijska industrija, 73, no. 4 (2019):265-274,
https://doi.org/10.2298/HEMIND190328023M .,
conv_859 .

TY  - CONF
AU  - Pavlović, Marko
AU  - Dojčinović, Marina
AU  - Andrić, Ljubiša
AU  - Stojanović, Jovica
AU  - Radulović, Dragan
AU  - Petrov, Milan
AU  - Blagojev, Marina
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1060
AB  - This paper analyzes the formation of cavitation damages depending on the technology of fabrication, structure and properties of basalt from the Vrelo-Kopaonik deposit. The methodology for monitoring the level of damage caused by cavitation and estimation the material life span base on parameters was developed: change in the mass loss, measurement the degradation level of the sample surface, dynamics of the formation of pits, changes in their average area surface, determination the line profile. A change in the surface morphology with the test time was followed by a scanning electron microscopy. The level of surface degradation of samples was quantified using the image analysis. The results indicate that the cast basalt has a high degree of cavitation resistance.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
PB  - Bor : Mining and Metallurgy Institute Bor
C3  - 50th International October Conference on Mining and Metallurgy
T1  - Influence of the basalt structure and properties on development the cavitation damage
EP  - 158
SP  - 155
ER  - 

@conference{
author = "Pavlović, Marko and Dojčinović, Marina and Andrić, Ljubiša and Stojanović, Jovica and Radulović, Dragan and Petrov, Milan and Blagojev, Marina",
year = "2018",
abstract = "This paper analyzes the formation of cavitation damages depending on the technology of fabrication, structure and properties of basalt from the Vrelo-Kopaonik deposit. The methodology for monitoring the level of damage caused by cavitation and estimation the material life span base on parameters was developed: change in the mass loss, measurement the degradation level of the sample surface, dynamics of the formation of pits, changes in their average area surface, determination the line profile. A change in the surface morphology with the test time was followed by a scanning electron microscopy. The level of surface degradation of samples was quantified using the image analysis. The results indicate that the cast basalt has a high degree of cavitation resistance.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor, Bor : Mining and Metallurgy Institute Bor",
journal = "50th International October Conference on Mining and Metallurgy",
title = "Influence of the basalt structure and properties on development the cavitation damage",
pages = "158-155"
}

Pavlović, M., Dojčinović, M., Andrić, L., Stojanović, J., Radulović, D., Petrov, M.,& Blagojev, M.. (2018). Influence of the basalt structure and properties on development the cavitation damage. in 50th International October Conference on Mining and Metallurgy
Bor : University of Belgrade, Technical Faculty in Bor., 155-158.

Pavlović M, Dojčinović M, Andrić L, Stojanović J, Radulović D, Petrov M, Blagojev M. Influence of the basalt structure and properties on development the cavitation damage. in 50th International October Conference on Mining and Metallurgy. 2018;:155-158..

Pavlović, Marko, Dojčinović, Marina, Andrić, Ljubiša, Stojanović, Jovica, Radulović, Dragan, Petrov, Milan, Blagojev, Marina, "Influence of the basalt structure and properties on development the cavitation damage" in 50th International October Conference on Mining and Metallurgy (2018):155-158.

TY  - CONF
AU  - Petrov, Milan
AU  - Radulović, Dragan
AU  - Andrić, Ljubiša
AU  - Blagojev, Marina
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1068
AB  - Hydrogen is considered to be be the fuel of the future. Fuel cells allow that the change of Gibbs function can provide maximum electrical work. Activation with mechanochemical treatment of mineral matter represents a technology that enables us to get fuel with high heat of combustion. The hydrogen generator represents a mechanochemical reactor or a mill with balls in whose operating cylinder is the metal creator in view of grinding bodies, water and abrasive. It is interesting to notice the fact that we calculated the work of the mill (reactor) in the dimension A(=) Jmol-1. It is also important the fact that one of the balls in a mill (reactor) mass m = 6.5 g, in the process of MH treatment, with its operation on the mineral grain size d = 100 um creates the pressure of 0.65 MPa.
PB  - Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences
C3  - 3rd International Symposium on Materials for Energy Storage and Conversion- mESC- IS 2018
T1  - Hydrogen genaration in mechanocemical reactor
ER  - 

@conference{
author = "Petrov, Milan and Radulović, Dragan and Andrić, Ljubiša and Blagojev, Marina",
year = "2018",
abstract = "Hydrogen is considered to be be the fuel of the future. Fuel cells allow that the change of Gibbs function can provide maximum electrical work. Activation with mechanochemical treatment of mineral matter represents a technology that enables us to get fuel with high heat of combustion. The hydrogen generator represents a mechanochemical reactor or a mill with balls in whose operating cylinder is the metal creator in view of grinding bodies, water and abrasive. It is interesting to notice the fact that we calculated the work of the mill (reactor) in the dimension A(=) Jmol-1. It is also important the fact that one of the balls in a mill (reactor) mass m = 6.5 g, in the process of MH treatment, with its operation on the mineral grain size d = 100 um creates the pressure of 0.65 MPa.",
publisher = "Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences",
journal = "3rd International Symposium on Materials for Energy Storage and Conversion- mESC- IS 2018",
title = "Hydrogen genaration in mechanocemical reactor"
}

Petrov, M., Radulović, D., Andrić, L.,& Blagojev, M.. (2018). Hydrogen genaration in mechanocemical reactor. in 3rd International Symposium on Materials for Energy Storage and Conversion- mESC- IS 2018
Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences..

Petrov M, Radulović D, Andrić L, Blagojev M. Hydrogen genaration in mechanocemical reactor. in 3rd International Symposium on Materials for Energy Storage and Conversion- mESC- IS 2018. 2018;..

Petrov, Milan, Radulović, Dragan, Andrić, Ljubiša, Blagojev, Marina, "Hydrogen genaration in mechanocemical reactor" in 3rd International Symposium on Materials for Energy Storage and Conversion- mESC- IS 2018 (2018).

TY  - CONF
AU  - Blagojev, Marina
AU  - Tomanec, Rudolf
AU  - Mihajlović, Slavica
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/708
AB  - The aim of this work is to analyze the impact and the potentials of multiple criteria decision-making methods (MCDM) especially focusing on its application in the field of sustainable solutions to waste problems. To demonstrate the applicability of MCDM methods in the field of mineral processing, the fly ash pellets selection problem was considered. Studies reported in this paper used three selected size fractions of pelletized fly ash, from power plant Nikola Tesla —B, Obrenovac, obtained at different amounts of the binder. Physical-mechanical properties of pellets samples were tested, afterwards the complex methods of multi-criteria decision making was presented, with the objective to determine adequate pellets for producing lightweight concrete. The criteria weighting was performed firstly, by AHP method, afterwards a decision model was applied, by using TOPSIS method. Fly ash pellets were ranked and the results obtained that the best pellet quality was archived for mean diameter (D9) of 11.21 mm and 8.36 mm, with compressive strength
of 6 MPa.
PB  - Košice : Ustav geotechniky SAV Košice
C3  - XXVII Scientific symposium with international Participation "Situation in ecologically loaded regions of Slovakia and central Europe"
T1  - Application of multi-criteria decision-making methods for managing quality and beneficiation of pelletized fly ash
EP  - 116
SP  - 112
ER  - 

@conference{
author = "Blagojev, Marina and Tomanec, Rudolf and Mihajlović, Slavica",
year = "2018",
abstract = "The aim of this work is to analyze the impact and the potentials of multiple criteria decision-making methods (MCDM) especially focusing on its application in the field of sustainable solutions to waste problems. To demonstrate the applicability of MCDM methods in the field of mineral processing, the fly ash pellets selection problem was considered. Studies reported in this paper used three selected size fractions of pelletized fly ash, from power plant Nikola Tesla —B, Obrenovac, obtained at different amounts of the binder. Physical-mechanical properties of pellets samples were tested, afterwards the complex methods of multi-criteria decision making was presented, with the objective to determine adequate pellets for producing lightweight concrete. The criteria weighting was performed firstly, by AHP method, afterwards a decision model was applied, by using TOPSIS method. Fly ash pellets were ranked and the results obtained that the best pellet quality was archived for mean diameter (D9) of 11.21 mm and 8.36 mm, with compressive strength
of 6 MPa.",
publisher = "Košice : Ustav geotechniky SAV Košice",
journal = "XXVII Scientific symposium with international Participation "Situation in ecologically loaded regions of Slovakia and central Europe"",
title = "Application of multi-criteria decision-making methods for managing quality and beneficiation of pelletized fly ash",
pages = "116-112"
}

Blagojev, M., Tomanec, R.,& Mihajlović, S.. (2018). Application of multi-criteria decision-making methods for managing quality and beneficiation of pelletized fly ash. in XXVII Scientific symposium with international Participation "Situation in ecologically loaded regions of Slovakia and central Europe"
Košice : Ustav geotechniky SAV Košice., 112-116.

Blagojev M, Tomanec R, Mihajlović S. Application of multi-criteria decision-making methods for managing quality and beneficiation of pelletized fly ash. in XXVII Scientific symposium with international Participation "Situation in ecologically loaded regions of Slovakia and central Europe". 2018;:112-116..

Blagojev, Marina, Tomanec, Rudolf, Mihajlović, Slavica, "Application of multi-criteria decision-making methods for managing quality and beneficiation of pelletized fly ash" in XXVII Scientific symposium with international Participation "Situation in ecologically loaded regions of Slovakia and central Europe" (2018):112-116.