Kinetics of barite reduction from refractory barite-sulphide ore
Апстракт
Refractory sulphide-barite ore was reduced with carbon in order to release lead, zinc, and copper sulphide from barite-pyrite base. Mineralogical investigations showed that due to the complex structural-textural relationships of lead, copper and zinc minerals with gangue minerals, it is not possible to enrich the ore using the conventional methods of mineral processing. The influence of temperature and time was studied to optimize the conditions, and to determine the kinetics of the barite reduction. The maximum removal of barite from ore was 96.7% at 900oC after 180 min. Chemically controlled kinetic model showed the best compliance with the experimental data. An activation energy of 142 kJ/mol was found.
Кључне речи:
refractory sulphide-barite ore / kinetic of barite reductionИзвор:
Metallurgical & Materials Engineering, 2016, 22, 4, 261-268Издавач:
- Savez inženjera metalurgije Srbije, Beograd
Финансирање / пројекти:
- Развој технолошких процеса прераде нестандардних концентрата бакра у циљу оптимизације емисије загађујућих материја (RS-MESTD-Technological Development (TD or TR)-34023)
- Развој технолошких поступака ливења под утицајем електромагнетног поља и технологија пластичне прераде у топлом стању четворокомпонентних легура Al-Zn за специјалне намене (RS-MESTD-Technological Development (TD or TR)-34002)
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Sokić, Miroslav AU - Matković, Vladislav AU - Stojanović, Jovica AU - Marković, Branislav AU - Manojlović, Vaso PY - 2016 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3310 AB - Refractory sulphide-barite ore was reduced with carbon in order to release lead, zinc, and copper sulphide from barite-pyrite base. Mineralogical investigations showed that due to the complex structural-textural relationships of lead, copper and zinc minerals with gangue minerals, it is not possible to enrich the ore using the conventional methods of mineral processing. The influence of temperature and time was studied to optimize the conditions, and to determine the kinetics of the barite reduction. The maximum removal of barite from ore was 96.7% at 900oC after 180 min. Chemically controlled kinetic model showed the best compliance with the experimental data. An activation energy of 142 kJ/mol was found. PB - Savez inženjera metalurgije Srbije, Beograd T2 - Metallurgical & Materials Engineering T1 - Kinetics of barite reduction from refractory barite-sulphide ore EP - 268 IS - 4 SP - 261 VL - 22 DO - 10.30544/237 ER -
@article{ author = "Sokić, Miroslav and Matković, Vladislav and Stojanović, Jovica and Marković, Branislav and Manojlović, Vaso", year = "2016", abstract = "Refractory sulphide-barite ore was reduced with carbon in order to release lead, zinc, and copper sulphide from barite-pyrite base. Mineralogical investigations showed that due to the complex structural-textural relationships of lead, copper and zinc minerals with gangue minerals, it is not possible to enrich the ore using the conventional methods of mineral processing. The influence of temperature and time was studied to optimize the conditions, and to determine the kinetics of the barite reduction. The maximum removal of barite from ore was 96.7% at 900oC after 180 min. Chemically controlled kinetic model showed the best compliance with the experimental data. An activation energy of 142 kJ/mol was found.", publisher = "Savez inženjera metalurgije Srbije, Beograd", journal = "Metallurgical & Materials Engineering", title = "Kinetics of barite reduction from refractory barite-sulphide ore", pages = "268-261", number = "4", volume = "22", doi = "10.30544/237" }
Sokić, M., Matković, V., Stojanović, J., Marković, B.,& Manojlović, V.. (2016). Kinetics of barite reduction from refractory barite-sulphide ore. in Metallurgical & Materials Engineering Savez inženjera metalurgije Srbije, Beograd., 22(4), 261-268. https://doi.org/10.30544/237
Sokić M, Matković V, Stojanović J, Marković B, Manojlović V. Kinetics of barite reduction from refractory barite-sulphide ore. in Metallurgical & Materials Engineering. 2016;22(4):261-268. doi:10.30544/237 .
Sokić, Miroslav, Matković, Vladislav, Stojanović, Jovica, Marković, Branislav, Manojlović, Vaso, "Kinetics of barite reduction from refractory barite-sulphide ore" in Metallurgical & Materials Engineering, 22, no. 4 (2016):261-268, https://doi.org/10.30544/237 . .