Modification of Structural-Textural Properties of Sulfide Minerals at Polymetallic Concentrate Leaching with Sulfuric Acid and Hydrogen Peroxide Solutions
Само за регистроване кориснике
2022
Аутори
Sokić, MiroslavStojanović, Jovica
Marković, Branislav
Kamberović, Željko
Gajić, Nataša
Radosavljević-Mihajlović, Ana
Milojkov, Dušan
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
This paper examines the effects of structural-textural characteristics of sulfide minerals on their leaching from polymetallic concentrates with sulfuric acid and hydrogen peroxide solutions. The polymetallic concentrate was obtained by flotation of polymetallic ore from the Rudnik deposit in Serbia. X-ray diffraction (XRD), qualitative and quantitative mineralogical, scanning electron microscopy (SEM/EDX), and chemical analyses were used to characterize the polymetallic concentrate and leach residue. The polymetallic concentrate contained chalcopyrite, galena, sphalerite, pyrrhotite, and quartz. The total content of sulfide minerals was 69.5%, and the occurrence of free sulfide mineral grains was about 60.9%. The comprehensive thermodynamic analysis was done by HSC Chemistry® package 9.9.2.3 to determine optimal experimental leaching conditions. Chalcopyrite, sphalerite, and pyrrhotite oxidized during leaching, and dissolution occurred. The oxidized galena remains in the solid residua...l as insoluble anglesite. Also, elemental sulfur and unleached minerals of copper, zinc, and iron were found in the leach residues. It was found that the structural assembly of sulfide minerals in the leach residue is very favorable and that undissolved sulfide grains are primarily present in free form. Accordingly, there was no reason to reduce the leaching rate with time. The presence of elemental sulfur and anglesite formed in the leaching process and precipitated on the surface of mineral grains was confirmed by XRD, quantitative and qualitative mineralogical analysis, and SEM/EDX.
Кључне речи:
hydrogen peroxide / polymetallic concentrate leaching / structural-textural characteristics of sulfide minerals / sulfuric acidИзвор:
Russian Journal of Non-Ferrous Metals, 2022, 63, 5, 457-472Издавач:
- Pleiades journals
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200023 (Институт за технологију нуклеарних и других минералних сировина - ИТНМС, Београд) (RS-MESTD-inst-2020-200023)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
Колекције
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Sokić, Miroslav AU - Stojanović, Jovica AU - Marković, Branislav AU - Kamberović, Željko AU - Gajić, Nataša AU - Radosavljević-Mihajlović, Ana AU - Milojkov, Dušan PY - 2022 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5238 AB - This paper examines the effects of structural-textural characteristics of sulfide minerals on their leaching from polymetallic concentrates with sulfuric acid and hydrogen peroxide solutions. The polymetallic concentrate was obtained by flotation of polymetallic ore from the Rudnik deposit in Serbia. X-ray diffraction (XRD), qualitative and quantitative mineralogical, scanning electron microscopy (SEM/EDX), and chemical analyses were used to characterize the polymetallic concentrate and leach residue. The polymetallic concentrate contained chalcopyrite, galena, sphalerite, pyrrhotite, and quartz. The total content of sulfide minerals was 69.5%, and the occurrence of free sulfide mineral grains was about 60.9%. The comprehensive thermodynamic analysis was done by HSC Chemistry® package 9.9.2.3 to determine optimal experimental leaching conditions. Chalcopyrite, sphalerite, and pyrrhotite oxidized during leaching, and dissolution occurred. The oxidized galena remains in the solid residual as insoluble anglesite. Also, elemental sulfur and unleached minerals of copper, zinc, and iron were found in the leach residues. It was found that the structural assembly of sulfide minerals in the leach residue is very favorable and that undissolved sulfide grains are primarily present in free form. Accordingly, there was no reason to reduce the leaching rate with time. The presence of elemental sulfur and anglesite formed in the leaching process and precipitated on the surface of mineral grains was confirmed by XRD, quantitative and qualitative mineralogical analysis, and SEM/EDX. PB - Pleiades journals T2 - Russian Journal of Non-Ferrous Metals T1 - Modification of Structural-Textural Properties of Sulfide Minerals at Polymetallic Concentrate Leaching with Sulfuric Acid and Hydrogen Peroxide Solutions EP - 472 IS - 5 SP - 457 VL - 63 DO - 10.3103/S1067821222050091 ER -
@article{ author = "Sokić, Miroslav and Stojanović, Jovica and Marković, Branislav and Kamberović, Željko and Gajić, Nataša and Radosavljević-Mihajlović, Ana and Milojkov, Dušan", year = "2022", abstract = "This paper examines the effects of structural-textural characteristics of sulfide minerals on their leaching from polymetallic concentrates with sulfuric acid and hydrogen peroxide solutions. The polymetallic concentrate was obtained by flotation of polymetallic ore from the Rudnik deposit in Serbia. X-ray diffraction (XRD), qualitative and quantitative mineralogical, scanning electron microscopy (SEM/EDX), and chemical analyses were used to characterize the polymetallic concentrate and leach residue. The polymetallic concentrate contained chalcopyrite, galena, sphalerite, pyrrhotite, and quartz. The total content of sulfide minerals was 69.5%, and the occurrence of free sulfide mineral grains was about 60.9%. The comprehensive thermodynamic analysis was done by HSC Chemistry® package 9.9.2.3 to determine optimal experimental leaching conditions. Chalcopyrite, sphalerite, and pyrrhotite oxidized during leaching, and dissolution occurred. The oxidized galena remains in the solid residual as insoluble anglesite. Also, elemental sulfur and unleached minerals of copper, zinc, and iron were found in the leach residues. It was found that the structural assembly of sulfide minerals in the leach residue is very favorable and that undissolved sulfide grains are primarily present in free form. Accordingly, there was no reason to reduce the leaching rate with time. The presence of elemental sulfur and anglesite formed in the leaching process and precipitated on the surface of mineral grains was confirmed by XRD, quantitative and qualitative mineralogical analysis, and SEM/EDX.", publisher = "Pleiades journals", journal = "Russian Journal of Non-Ferrous Metals", title = "Modification of Structural-Textural Properties of Sulfide Minerals at Polymetallic Concentrate Leaching with Sulfuric Acid and Hydrogen Peroxide Solutions", pages = "472-457", number = "5", volume = "63", doi = "10.3103/S1067821222050091" }
Sokić, M., Stojanović, J., Marković, B., Kamberović, Ž., Gajić, N., Radosavljević-Mihajlović, A.,& Milojkov, D.. (2022). Modification of Structural-Textural Properties of Sulfide Minerals at Polymetallic Concentrate Leaching with Sulfuric Acid and Hydrogen Peroxide Solutions. in Russian Journal of Non-Ferrous Metals Pleiades journals., 63(5), 457-472. https://doi.org/10.3103/S1067821222050091
Sokić M, Stojanović J, Marković B, Kamberović Ž, Gajić N, Radosavljević-Mihajlović A, Milojkov D. Modification of Structural-Textural Properties of Sulfide Minerals at Polymetallic Concentrate Leaching with Sulfuric Acid and Hydrogen Peroxide Solutions. in Russian Journal of Non-Ferrous Metals. 2022;63(5):457-472. doi:10.3103/S1067821222050091 .
Sokić, Miroslav, Stojanović, Jovica, Marković, Branislav, Kamberović, Željko, Gajić, Nataša, Radosavljević-Mihajlović, Ana, Milojkov, Dušan, "Modification of Structural-Textural Properties of Sulfide Minerals at Polymetallic Concentrate Leaching with Sulfuric Acid and Hydrogen Peroxide Solutions" in Russian Journal of Non-Ferrous Metals, 63, no. 5 (2022):457-472, https://doi.org/10.3103/S1067821222050091 . .