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| Study on Valuable Metal Enrichment in Zinc Concentrates Oxygen Pressure Leaching Solution |
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Received:April 21, 2020
Revised:May 20, 2020
Accepted:May 21, 2020
Published Online:August 17, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.09.001 |
| KeyWord:zinc concentrates oxygen pressure leaching solution; replacement; enrichment |
| Author | Institution |
| ZHANG Deng-gao |
矿冶科技集团有限公司 |
| WANG Sheng-dong |
矿冶科技集团有限公司 |
| ZhAO Feng |
矿冶科技集团有限公司 |
| JIANG Xun-xiong |
矿冶科技集团有限公司 |
| FENG Lin-yong |
矿冶科技集团有限公司 |
| JIANG Wei |
矿冶科技集团有限公司 |
| Li Da |
矿冶科技集团有限公司 |
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| Abstract: |
| Pre-neutralized liquid of zinc concentrate oxygen pressure leaching solution was purified by zinc powder replacement method applying pre-neutralized liquid of zinc concentrate oxygen pressure leaching solution and first stage residue as raw materials. The results show that precipitation rate of Cd, Ga, and Ge is 87.53%、86.62%、97.83% respectively, under the conditions including volume of pre-neutralization solution of 1 L, dosage of zinc powder of 8.33g, replacement temperature of 65 ℃, stirring time of 90 min, and stirring speed of 300 r/min. Most of Cu, Cd, Ga, and Ge entering replacement slag are enriched. Return of first stage residue can improve utilization rate of zinc powder and reduce production cost. |
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