TY  - JOUR
AU  - Jovanović, Vladimir
AU  - Nisić, Dragana
AU  - Milisavljević, Vladimir
AU  - Todorović, Dejan
AU  - Radulović, Dragan
AU  - Ivošević, Branislav
AU  - Milićević, Sonja
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/630
AB  - This paper presents the results of experiments performed to determine how the quantity of the binder (bentonite) and the parameters of the laboratory roll press affect the quality of the briquettes obtained from limestone powder. These experiments aim to examine the conditions in which limestone briquettes are formed and to determine their use for agricultural purposes. During the experiments various mass fractions of bentonite was added to limestone (from 1 to 10 %), while the force of roll press drums ranged from 2 to 25 kN. The briquettes have been tested by applying scanning electron microscopy (SEM), differential thermal and thermo-gravimetric (DTA/TG) analyses, X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). Bentonite distribution was found to be uniform within the compact briquette structure. Formation of new compounds was not evidenced. The experiments also demonstrated that during briquetting, limestone properties remain unchanged, the changes are only physical, water solubility is not reduced, mechanical properties (impact resistance, compressive strength and abrasion resistance) are satisfactory by the transport and storage terms if the binder mass fraction is over 5% and the briquetting force exceeds 10kN and finally there is no loss due to wind dispersal during application. The only downside of the "green" briquettes obtained is the time required for their complete disintegration if totally immersed in water.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Effects of production conditions on the properties of limestone briquettes aimed for acid soil liming
EP  - 107
IS  - 2
SP  - 97
VL  - 76
DO  - 10.2298/HEMIND220211011J
UR  - conv_941
ER  - 

@article{
author = "Jovanović, Vladimir and Nisić, Dragana and Milisavljević, Vladimir and Todorović, Dejan and Radulović, Dragan and Ivošević, Branislav and Milićević, Sonja",
year = "2022",
abstract = "This paper presents the results of experiments performed to determine how the quantity of the binder (bentonite) and the parameters of the laboratory roll press affect the quality of the briquettes obtained from limestone powder. These experiments aim to examine the conditions in which limestone briquettes are formed and to determine their use for agricultural purposes. During the experiments various mass fractions of bentonite was added to limestone (from 1 to 10 %), while the force of roll press drums ranged from 2 to 25 kN. The briquettes have been tested by applying scanning electron microscopy (SEM), differential thermal and thermo-gravimetric (DTA/TG) analyses, X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). Bentonite distribution was found to be uniform within the compact briquette structure. Formation of new compounds was not evidenced. The experiments also demonstrated that during briquetting, limestone properties remain unchanged, the changes are only physical, water solubility is not reduced, mechanical properties (impact resistance, compressive strength and abrasion resistance) are satisfactory by the transport and storage terms if the binder mass fraction is over 5% and the briquetting force exceeds 10kN and finally there is no loss due to wind dispersal during application. The only downside of the "green" briquettes obtained is the time required for their complete disintegration if totally immersed in water.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Effects of production conditions on the properties of limestone briquettes aimed for acid soil liming",
pages = "107-97",
number = "2",
volume = "76",
doi = "10.2298/HEMIND220211011J",
url = "conv_941"
}

Jovanović, V., Nisić, D., Milisavljević, V., Todorović, D., Radulović, D., Ivošević, B.,& Milićević, S.. (2022). Effects of production conditions on the properties of limestone briquettes aimed for acid soil liming. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 76(2), 97-107.
https://doi.org/10.2298/HEMIND220211011J
conv_941

Jovanović V, Nisić D, Milisavljević V, Todorović D, Radulović D, Ivošević B, Milićević S. Effects of production conditions on the properties of limestone briquettes aimed for acid soil liming. in Hemijska industrija. 2022;76(2):97-107.
doi:10.2298/HEMIND220211011J
conv_941 .

Jovanović, Vladimir, Nisić, Dragana, Milisavljević, Vladimir, Todorović, Dejan, Radulović, Dragan, Ivošević, Branislav, Milićević, Sonja, "Effects of production conditions on the properties of limestone briquettes aimed for acid soil liming" in Hemijska industrija, 76, no. 2 (2022):97-107,
https://doi.org/10.2298/HEMIND220211011J .,
conv_941 .

TY  - JOUR
AU  - Nisić, Dragana
AU  - Knezević, D.
AU  - Cvjetić, A.
AU  - Nisić, N.
AU  - Jovanović, Vladimir
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/626
AB  - The risks associated with operating water reservoirs and tailings storage facilities (TSFs) are different because of their different purposes, methods of construction and operation, and characteristics of the materials impounded and their flow behaviour. Regardless of the differences, these two types of structures are often put in the same category when it comes to risk assessment and the application of relevant methodologies, which may result in unrealistic outcomes. In this paper we investigate whether it is possible to apply the risk ranking methodology designed for water reservoirs to TDFs and overview the key differences between these two types of structures. We also provide a comparative analysis of the results obtained by conducting a risk assessment of the operation of a TSF, applying the method recommended by the International Commission on Large Dams (ICOLD), and analyse the results using the failure mode and effects analysis (FMEA) technique. It is concluded that a more realistic evaluation of risk levels can be obtained by adopting a systematic approach to risk assessment in accordance with the traditional risk definition on which the FMEA technique is based.
PB  - Southern  African Inst Mining Metallurgy, Marshalltown         L
T2  - Journal of the Southern African Institute of Mining and Metallurgy
T1  - Applicability of the risk ranking methodology designed for water reservoirs to tailings storage facilities
EP  - 679
IS  - 11
SP  - 673
VL  - 122
DO  - 10.17159/2411-9717/1492/2022
UR  - conv_964
ER  - 

@article{
author = "Nisić, Dragana and Knezević, D. and Cvjetić, A. and Nisić, N. and Jovanović, Vladimir",
year = "2022",
abstract = "The risks associated with operating water reservoirs and tailings storage facilities (TSFs) are different because of their different purposes, methods of construction and operation, and characteristics of the materials impounded and their flow behaviour. Regardless of the differences, these two types of structures are often put in the same category when it comes to risk assessment and the application of relevant methodologies, which may result in unrealistic outcomes. In this paper we investigate whether it is possible to apply the risk ranking methodology designed for water reservoirs to TDFs and overview the key differences between these two types of structures. We also provide a comparative analysis of the results obtained by conducting a risk assessment of the operation of a TSF, applying the method recommended by the International Commission on Large Dams (ICOLD), and analyse the results using the failure mode and effects analysis (FMEA) technique. It is concluded that a more realistic evaluation of risk levels can be obtained by adopting a systematic approach to risk assessment in accordance with the traditional risk definition on which the FMEA technique is based.",
publisher = "Southern  African Inst Mining Metallurgy, Marshalltown         L",
journal = "Journal of the Southern African Institute of Mining and Metallurgy",
title = "Applicability of the risk ranking methodology designed for water reservoirs to tailings storage facilities",
pages = "679-673",
number = "11",
volume = "122",
doi = "10.17159/2411-9717/1492/2022",
url = "conv_964"
}

Nisić, D., Knezević, D., Cvjetić, A., Nisić, N.,& Jovanović, V.. (2022). Applicability of the risk ranking methodology designed for water reservoirs to tailings storage facilities. in Journal of the Southern African Institute of Mining and Metallurgy
Southern  African Inst Mining Metallurgy, Marshalltown         L., 122(11), 673-679.
https://doi.org/10.17159/2411-9717/1492/2022
conv_964

Nisić D, Knezević D, Cvjetić A, Nisić N, Jovanović V. Applicability of the risk ranking methodology designed for water reservoirs to tailings storage facilities. in Journal of the Southern African Institute of Mining and Metallurgy. 2022;122(11):673-679.
doi:10.17159/2411-9717/1492/2022
conv_964 .

Nisić, Dragana, Knezević, D., Cvjetić, A., Nisić, N., Jovanović, Vladimir, "Applicability of the risk ranking methodology designed for water reservoirs to tailings storage facilities" in Journal of the Southern African Institute of Mining and Metallurgy, 122, no. 11 (2022):673-679,
https://doi.org/10.17159/2411-9717/1492/2022 .,
conv_964 .

TY  - JOUR
AU  - Jovanović, Vladimir
AU  - Knezević, Dinko N.
AU  - Sekulić, Živko
AU  - Kragović, Milan
AU  - Stojanović, Jovica
AU  - Mihajlović, Slavica
AU  - Nisić, Dragana
AU  - Radulović, Dragan
AU  - Ivošević, Branislav
AU  - Petrov, Milan
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/453
AB  - This paper presents the results of tests carried out to determine how the dosage of bentonite added as binder, affects the properties of green pellets made of the limestone fines that originate from Lithothamnium limestone processing. Bentonite was added to limestone in different mass fractions (1, 2.5, 5 and 10%), whereas all the other parameters of the pelletizing process remained constant. The aim of pelletizing was to consolidate limestone fines and form mechanically stable pellets, provided that all the other properties of limestone remain unchanged. The pellets formed in this way were analysed applying DTA/TG analysis and FTIR and SEM analyses. The results showed uniform distribution of bentonite in the pellets, demonstrated that the pellets are compact and there is no formation of new compounds. The pellets were tested for resistance to impact, compressive strength and abrasion resistance. Also disintegration tests were performed to determine the time required for the pellet to disintegrate completely in water. These mechanical properties are essential for transport, handling, storage and general use of pellets. The values of most of the parameters established for pellets with 5% bentonite, meet the standards required for use in agriculture for liming acid soils, however their application is limited because their impact resistance is unsatisfactory and the time required for their complete disintegration in water is extremely short. It should be noted that further increase of bentonite content (over 10%) will not improve the quality of green pellets. In view of the results obtained, it is necessary to introduce drying into the pelletizing process in order to bring the green pellets into solid state.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Effects of bentonite binder dosage on the properties of green limestone pellets
EP  - 144
IS  - 2
SP  - 135
VL  - 71
DO  - 10.2298/HEMIND160210023J
UR  - conv_793
ER  - 

@article{
author = "Jovanović, Vladimir and Knezević, Dinko N. and Sekulić, Živko and Kragović, Milan and Stojanović, Jovica and Mihajlović, Slavica and Nisić, Dragana and Radulović, Dragan and Ivošević, Branislav and Petrov, Milan",
year = "2017",
abstract = "This paper presents the results of tests carried out to determine how the dosage of bentonite added as binder, affects the properties of green pellets made of the limestone fines that originate from Lithothamnium limestone processing. Bentonite was added to limestone in different mass fractions (1, 2.5, 5 and 10%), whereas all the other parameters of the pelletizing process remained constant. The aim of pelletizing was to consolidate limestone fines and form mechanically stable pellets, provided that all the other properties of limestone remain unchanged. The pellets formed in this way were analysed applying DTA/TG analysis and FTIR and SEM analyses. The results showed uniform distribution of bentonite in the pellets, demonstrated that the pellets are compact and there is no formation of new compounds. The pellets were tested for resistance to impact, compressive strength and abrasion resistance. Also disintegration tests were performed to determine the time required for the pellet to disintegrate completely in water. These mechanical properties are essential for transport, handling, storage and general use of pellets. The values of most of the parameters established for pellets with 5% bentonite, meet the standards required for use in agriculture for liming acid soils, however their application is limited because their impact resistance is unsatisfactory and the time required for their complete disintegration in water is extremely short. It should be noted that further increase of bentonite content (over 10%) will not improve the quality of green pellets. In view of the results obtained, it is necessary to introduce drying into the pelletizing process in order to bring the green pellets into solid state.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Effects of bentonite binder dosage on the properties of green limestone pellets",
pages = "144-135",
number = "2",
volume = "71",
doi = "10.2298/HEMIND160210023J",
url = "conv_793"
}

Jovanović, V., Knezević, D. N., Sekulić, Ž., Kragović, M., Stojanović, J., Mihajlović, S., Nisić, D., Radulović, D., Ivošević, B.,& Petrov, M.. (2017). Effects of bentonite binder dosage on the properties of green limestone pellets. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 71(2), 135-144.
https://doi.org/10.2298/HEMIND160210023J
conv_793

Jovanović V, Knezević DN, Sekulić Ž, Kragović M, Stojanović J, Mihajlović S, Nisić D, Radulović D, Ivošević B, Petrov M. Effects of bentonite binder dosage on the properties of green limestone pellets. in Hemijska industrija. 2017;71(2):135-144.
doi:10.2298/HEMIND160210023J
conv_793 .

Jovanović, Vladimir, Knezević, Dinko N., Sekulić, Živko, Kragović, Milan, Stojanović, Jovica, Mihajlović, Slavica, Nisić, Dragana, Radulović, Dragan, Ivošević, Branislav, Petrov, Milan, "Effects of bentonite binder dosage on the properties of green limestone pellets" in Hemijska industrija, 71, no. 2 (2017):135-144,
https://doi.org/10.2298/HEMIND160210023J .,
conv_793 .

TY  - JOUR
AU  - Sekulić, Živko
AU  - Bartulović, Zoran
AU  - Mihajlović, Slavica
AU  - Ignjatović, Miroslav R.
AU  - Savić, Ljubinko
AU  - Jovanović, Vladimir
AU  - Nisić, Dragana
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/420
AB  - This review article surveys the subject of choice of high gradient magnetic separation processes for removal of Fe2O3 carriers from quartz raw material by electromagnetic separator with magnetic field intensity of 1.4 T. The review is based on current experience of authors during research phase, as well as project development phase and initial operation of facilities in several locations. Quartz mineral raw material in those locations appeared as sandstone or as loose material. In addition to that, quartz raw material from those locations contained various impurities, i.e. Fe2O3 carriers. The choice of this process for Fe2O3 removal depended on mineralogical composition, shape and the content of minerals, and Fe2O3 removal rate after this process was from 29 to 65%. Magnetic separation is magnetic induction of 1.4 T. It is applied on commercial assortments which were previously subjected to washing and classification processes. It is always the assortment which has to have the lowest Fe2O3 content. The choice of, "dry" or, "wet" magnetic separation (with water flush) also depends on the fact whether this desired assortment is intended for market as dry or wet, as well as on the composition of magnetic impurities. In most cases, the process applied is the wet one.
PB  - Polska Akad Nauk, Polish Acad Sciences, Miner & Energy Econ Res Inst Pas, Warszawa
T2  - Gospodarka Surowcami Mineralnymi-Mineral Resources Management
T1  - The choice of high gradient magnetic separation processes for removal of Fe2O3 carriers from quartz raw material
EP  - 106
IS  - 4
SP  - 93
VL  - 33
DO  - 10.1515/gospo-2017-0047
UR  - conv_813
ER  - 

@article{
author = "Sekulić, Živko and Bartulović, Zoran and Mihajlović, Slavica and Ignjatović, Miroslav R. and Savić, Ljubinko and Jovanović, Vladimir and Nisić, Dragana",
year = "2017",
abstract = "This review article surveys the subject of choice of high gradient magnetic separation processes for removal of Fe2O3 carriers from quartz raw material by electromagnetic separator with magnetic field intensity of 1.4 T. The review is based on current experience of authors during research phase, as well as project development phase and initial operation of facilities in several locations. Quartz mineral raw material in those locations appeared as sandstone or as loose material. In addition to that, quartz raw material from those locations contained various impurities, i.e. Fe2O3 carriers. The choice of this process for Fe2O3 removal depended on mineralogical composition, shape and the content of minerals, and Fe2O3 removal rate after this process was from 29 to 65%. Magnetic separation is magnetic induction of 1.4 T. It is applied on commercial assortments which were previously subjected to washing and classification processes. It is always the assortment which has to have the lowest Fe2O3 content. The choice of, "dry" or, "wet" magnetic separation (with water flush) also depends on the fact whether this desired assortment is intended for market as dry or wet, as well as on the composition of magnetic impurities. In most cases, the process applied is the wet one.",
publisher = "Polska Akad Nauk, Polish Acad Sciences, Miner & Energy Econ Res Inst Pas, Warszawa",
journal = "Gospodarka Surowcami Mineralnymi-Mineral Resources Management",
title = "The choice of high gradient magnetic separation processes for removal of Fe2O3 carriers from quartz raw material",
pages = "106-93",
number = "4",
volume = "33",
doi = "10.1515/gospo-2017-0047",
url = "conv_813"
}

Sekulić, Ž., Bartulović, Z., Mihajlović, S., Ignjatović, M. R., Savić, L., Jovanović, V.,& Nisić, D.. (2017). The choice of high gradient magnetic separation processes for removal of Fe2O3 carriers from quartz raw material. in Gospodarka Surowcami Mineralnymi-Mineral Resources Management
Polska Akad Nauk, Polish Acad Sciences, Miner & Energy Econ Res Inst Pas, Warszawa., 33(4), 93-106.
https://doi.org/10.1515/gospo-2017-0047
conv_813

Sekulić Ž, Bartulović Z, Mihajlović S, Ignjatović MR, Savić L, Jovanović V, Nisić D. The choice of high gradient magnetic separation processes for removal of Fe2O3 carriers from quartz raw material. in Gospodarka Surowcami Mineralnymi-Mineral Resources Management. 2017;33(4):93-106.
doi:10.1515/gospo-2017-0047
conv_813 .

Sekulić, Živko, Bartulović, Zoran, Mihajlović, Slavica, Ignjatović, Miroslav R., Savić, Ljubinko, Jovanović, Vladimir, Nisić, Dragana, "The choice of high gradient magnetic separation processes for removal of Fe2O3 carriers from quartz raw material" in Gospodarka Surowcami Mineralnymi-Mineral Resources Management, 33, no. 4 (2017):93-106,
https://doi.org/10.1515/gospo-2017-0047 .,
conv_813 .