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| Process Mineralogy and Element Recovery of High-Sulfur Slag Leaching Zinc |
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Received:January 20, 2021
Revised:January 26, 2021
Accepted:February 01, 2021
Published Online:May 20, 2021
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| DOI：doi：10.3969/j.issn.1007-7545.2021.06.004 |
| KeyWord:oxygen pressure zinc leaching; high-sulfur slag; process mineralogy; element recovery |
| Author | Institution |
| HU Ya-nan |
东北大学 |
| YANG Hong-ying |
东北大学 |
| MENG Qing-yu |
呼伦贝尔驰宏矿业有限公司;呼伦贝尔驰宏矿业有限公司 |
| ZHANG Qin |
东北大学 |
| TONG Lin-lin |
东北大学 |
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| Abstract: |
| Oxygen pressure zinc leaching is a new hydrometallurgy process. 40% high-sulfur slag will be produced during the process. Due to uneven particle size and high viscosity of high sulfur slag, research on process mineralogy is not in-depth, which makes it difficult to treat and utilize high sulfur slag. Taking high-sulfur slag, sulfur concentrate and sulfur tailings from a zinc smelter in Inner Mongolia as research object, its process mineralogical characteristics, comprehensive recycling of valuable metals such as lead, zinc, copper and silver were studied. XRF, polarized light microscope, SEM-EDS, laser particle size analyzer and MLA mineral dissociation analyzer were used to explore elements, mineral composition, particle size and continuous growth of high-sulfur slag, sulfur concentrate and sulfur tailings. Sulfur recovery in flotation of high sulfur slag is 84.5%, recovery of Pb, Zn and Ag is 95.3%, 85.6% and 96.91%, respectively, after sulfur tailings put into lead smelting system of Ausmelt oxygen-rich top-blown furnace. |
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