TY  - CONF
AU  - Radulović, Dragan
AU  - Jovanović, Ivana
AU  - Todorović, Dejan
AU  - Jovanović, Vladimir
AU  - Ivošević, Branislav
AU  - Conić, Vesna
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1072
AB  - This paper describes a part of the experimental procedure for testing the performance of grinding media (steel balls) during the smelting slag milling, as well as the modeling procedure and model results that predict the consumption of balls under given experimental conditions. Firstly, the most suitable mineral raw material for testing the durability of the grinding media was defined. In laboratory conditions, it was determined that it is most expedient to use slag from the melting process of Pb-Zn concentrate for testing. The coarse moisture content was determined on the initial slag sample, while the particle size composition and Bond work index were determined on the crushed slag samples. In accordance with the characteristics of the raw material, the technical-technological parameters of the system for wet grinding of slag were defined, in which the balls durability test was performed. The obtained results showed that the consumption of grinding media is about 1 kg/t of slag. Six ANN models, developed on the basis of experimental results, showed good predictive abilities when it comes to stel balls consumption. As a result of modeling, high correlation coefficients were obtained, the value of which was about R = 0.99.
PB  - Belgrade : University of Belgrade, Faculty of Mining and Geology
C3  - IX International Conference Mining and Environmental Protection (MEP 23)
T1  - Testing of grinding media performances at the conditions of Pb-Zn smelting slag wet milling and prediction of balls consumption by ann-based models
EP  - 176
SP  - 170
ER  - 

@conference{
author = "Radulović, Dragan and Jovanović, Ivana and Todorović, Dejan and Jovanović, Vladimir and Ivošević, Branislav and Conić, Vesna",
year = "2023",
abstract = "This paper describes a part of the experimental procedure for testing the performance of grinding media (steel balls) during the smelting slag milling, as well as the modeling procedure and model results that predict the consumption of balls under given experimental conditions. Firstly, the most suitable mineral raw material for testing the durability of the grinding media was defined. In laboratory conditions, it was determined that it is most expedient to use slag from the melting process of Pb-Zn concentrate for testing. The coarse moisture content was determined on the initial slag sample, while the particle size composition and Bond work index were determined on the crushed slag samples. In accordance with the characteristics of the raw material, the technical-technological parameters of the system for wet grinding of slag were defined, in which the balls durability test was performed. The obtained results showed that the consumption of grinding media is about 1 kg/t of slag. Six ANN models, developed on the basis of experimental results, showed good predictive abilities when it comes to stel balls consumption. As a result of modeling, high correlation coefficients were obtained, the value of which was about R = 0.99.",
publisher = "Belgrade : University of Belgrade, Faculty of Mining and Geology",
journal = "IX International Conference Mining and Environmental Protection (MEP 23)",
title = "Testing of grinding media performances at the conditions of Pb-Zn smelting slag wet milling and prediction of balls consumption by ann-based models",
pages = "176-170"
}

Radulović, D., Jovanović, I., Todorović, D., Jovanović, V., Ivošević, B.,& Conić, V.. (2023). Testing of grinding media performances at the conditions of Pb-Zn smelting slag wet milling and prediction of balls consumption by ann-based models. in IX International Conference Mining and Environmental Protection (MEP 23)
Belgrade : University of Belgrade, Faculty of Mining and Geology., 170-176.

Radulović D, Jovanović I, Todorović D, Jovanović V, Ivošević B, Conić V. Testing of grinding media performances at the conditions of Pb-Zn smelting slag wet milling and prediction of balls consumption by ann-based models. in IX International Conference Mining and Environmental Protection (MEP 23). 2023;:170-176..

Radulović, Dragan, Jovanović, Ivana, Todorović, Dejan, Jovanović, Vladimir, Ivošević, Branislav, Conić, Vesna, "Testing of grinding media performances at the conditions of Pb-Zn smelting slag wet milling and prediction of balls consumption by ann-based models" in IX International Conference Mining and Environmental Protection (MEP 23) (2023):170-176.

TY  - CONF
AU  - Avdalović, Jelena
AU  - Avdalović, Nikoleta
AU  - Šoštarić, Tatjana
AU  - Lukić, Marija
AU  - Milić, Jelena
AU  - Milojković, Jelena
AU  - Conić, Vesna
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/853
AB  - Bioleaching is an environmentally-friendly approach for the extraction of useful metals from low-grade ores and secondary mineral materials.
The object of this paper was to examine the possibility of microbiological solubilisation of copper from ore dump by Acidithiobacillus sp. B2.
Leaching experiments were performed by the shake flask testing technique at 28 oC, during two-week period. The percentage of the copper leached at the end of this experiment was 31%.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Recovery of copper from ore dump using bioleaching approach
EP  - 456
SP  - 453
VL  - 1
ER  - 

@conference{
author = "Avdalović, Jelena and Avdalović, Nikoleta and Šoštarić, Tatjana and Lukić, Marija and Milić, Jelena and Milojković, Jelena and Conić, Vesna",
year = "2022",
abstract = "Bioleaching is an environmentally-friendly approach for the extraction of useful metals from low-grade ores and secondary mineral materials.
The object of this paper was to examine the possibility of microbiological solubilisation of copper from ore dump by Acidithiobacillus sp. B2.
Leaching experiments were performed by the shake flask testing technique at 28 oC, during two-week period. The percentage of the copper leached at the end of this experiment was 31%.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "16th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Recovery of copper from ore dump using bioleaching approach",
pages = "456-453",
volume = "1"
}

Avdalović, J., Avdalović, N., Šoštarić, T., Lukić, M., Milić, J., Milojković, J.,& Conić, V.. (2022). Recovery of copper from ore dump using bioleaching approach. in 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Belgrade : Society of Physical Chemists of Serbia., 1, 453-456.

Avdalović J, Avdalović N, Šoštarić T, Lukić M, Milić J, Milojković J, Conić V. Recovery of copper from ore dump using bioleaching approach. in 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2022;1:453-456..

Avdalović, Jelena, Avdalović, Nikoleta, Šoštarić, Tatjana, Lukić, Marija, Milić, Jelena, Milojković, Jelena, Conić, Vesna, "Recovery of copper from ore dump using bioleaching approach" in 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, 1 (2022):453-456.

TY  - JOUR
AU  - Conić, Vesna
AU  - Stanković, Srđan
AU  - Marković, Branislav
AU  - Bozić, Dragana
AU  - Stojanović, Jovica
AU  - Sokić, Miroslav
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/542
AB  - This work aimed to investigate optimal leaching technology for copper extraction from old flotation tailings of the Copper Mine Bor. The leaching degree of copper after leaching with sulphuric acid at 80 degrees C was 50%, the maximal leaching degree was achieved after 30 minutes. Then, old flotation tailings were leached with adapted moderately thermophilic acidophilic bacteria in a bioreactor at 40 degrees C. Maximal leaching degree of 84% was achieved after nine days of the experiment. The third leaching experiment was conducted with biogenic lixiviant obtained by bacterial oxidation of the ferrous iron (concentration of Fe3+ 1300 mgL(-1), pH 2.14). Biogenic lixiviant with ferric sulphate was then used in the leaching experiment at 80 degrees C. Maximal leaching degree was 78%, and it was achieved after five minutes. Results of the leaching experiments show that the most efficient technology for copper recovery from the old flotation tailings of the Copper Mine Bor was leaching with biogenic lixiviant.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Investigation of the optimal technology for copper leaching from old flotation tailings of the copper mine Bor (Serbia)
EP  - 222
IS  - 2
SP  - 209
VL  - 26
DO  - 10.30544/514
UR  - conv_890
ER  - 

@article{
author = "Conić, Vesna and Stanković, Srđan and Marković, Branislav and Bozić, Dragana and Stojanović, Jovica and Sokić, Miroslav",
year = "2020",
abstract = "This work aimed to investigate optimal leaching technology for copper extraction from old flotation tailings of the Copper Mine Bor. The leaching degree of copper after leaching with sulphuric acid at 80 degrees C was 50%, the maximal leaching degree was achieved after 30 minutes. Then, old flotation tailings were leached with adapted moderately thermophilic acidophilic bacteria in a bioreactor at 40 degrees C. Maximal leaching degree of 84% was achieved after nine days of the experiment. The third leaching experiment was conducted with biogenic lixiviant obtained by bacterial oxidation of the ferrous iron (concentration of Fe3+ 1300 mgL(-1), pH 2.14). Biogenic lixiviant with ferric sulphate was then used in the leaching experiment at 80 degrees C. Maximal leaching degree was 78%, and it was achieved after five minutes. Results of the leaching experiments show that the most efficient technology for copper recovery from the old flotation tailings of the Copper Mine Bor was leaching with biogenic lixiviant.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Investigation of the optimal technology for copper leaching from old flotation tailings of the copper mine Bor (Serbia)",
pages = "222-209",
number = "2",
volume = "26",
doi = "10.30544/514",
url = "conv_890"
}

Conić, V., Stanković, S., Marković, B., Bozić, D., Stojanović, J.,& Sokić, M.. (2020). Investigation of the optimal technology for copper leaching from old flotation tailings of the copper mine Bor (Serbia). in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 26(2), 209-222.
https://doi.org/10.30544/514
conv_890

Conić V, Stanković S, Marković B, Bozić D, Stojanović J, Sokić M. Investigation of the optimal technology for copper leaching from old flotation tailings of the copper mine Bor (Serbia). in Metallurgical & Materials Engineering. 2020;26(2):209-222.
doi:10.30544/514
conv_890 .

Conić, Vesna, Stanković, Srđan, Marković, Branislav, Bozić, Dragana, Stojanović, Jovica, Sokić, Miroslav, "Investigation of the optimal technology for copper leaching from old flotation tailings of the copper mine Bor (Serbia)" in Metallurgical & Materials Engineering, 26, no. 2 (2020):209-222,
https://doi.org/10.30544/514 .,
conv_890 .