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Modification of Structural-Textural Properties of Sulfide Minerals at Polymetallic Concentrate Leaching with Sulfuric Acid and Hydrogen Peroxide Solutions

Authorized Users Only
2022
Authors
Sokić, Miroslav
Stojanović, Jovica
Marković, Branislav
Kamberović, Željko
Gajić, Nataša
Radosavljević-Mihajlović, Ana
Milojkov, Dušan
Article (Published version)
Metadata
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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 (R) 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 resi...dual 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.

Keywords:
sulfuric acid / structural-textural characteristics of sulfide minerals / polymetallic concentrate leaching / hydrogen peroxide
Source:
Russian Journal of Non-Ferrous Metals, 2022, 63, 5, 457-472
Publisher:
  • Pleiades Publishing Inc, New York
Funding / projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200023 (Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade) (RS-200023)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-200135)

DOI: 10.3103/S1067821222050091

ISSN: 1067-8212

WoS: 000871081000001

Scopus: 2-s2.0-85140333216
[ Google Scholar ]
URI
https://ritnms.itnms.ac.rs/handle/123456789/607
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Institut za tehnologiju nuklearnih i drugih mineralnih sirovina
TY  - 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  - https://ritnms.itnms.ac.rs/handle/123456789/607
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 (R) 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 Publishing Inc, New York
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
UR  - conv_954
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 (R) 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 Publishing Inc, New York",
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",
url = "conv_954"
}
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 Publishing Inc, New York., 63(5), 457-472.
https://doi.org/10.3103/S1067821222050091
conv_954
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
conv_954 .
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 .,
conv_954 .

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