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| Study on Separation and Enrichment of Multi-metals in Acid Washing of Replacement Residue |
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Received:November 11, 2020
Revised:November 16, 2020
Accepted:November 18, 2020
Published Online:March 24, 2021
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| DOI：doi：10.3969/j.issn.1007-7545.2021.04.002 |
| KeyWord:replacement slag; acid washing; separation and enrichment |
| Author | Institution |
| Wang Sheng-dong |
矿冶科技集团有限公司 |
| Zhang Deng-gao |
北京矿冶科技集团有限公司 |
| Zhao Feng |
北京矿冶科技集团有限公司 |
| WANG Hai-bei |
北京矿冶科技集团有限公司 |
| Feng Lin-yong |
北京矿冶科技集团有限公司 |
| Jiang Wei |
北京矿冶科技集团有限公司 |
| Li Da |
北京矿冶科技集团有限公司 |
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| Abstract: |
| According to characteristics of replacement slag from zinc hydrometallurgy and properties of different metals, cadmium was selectively separated from copper, gallium and germanium by acid washing to achieve high-efficiency enrichment of copper, gallium, and germanium in solid phase. High-cadmium slag with cadmium grade of >20% was obtained from cadmium-rich acid washing solution by zinc powder replacement. Efficient recovery of cadmium in acid washing process of replacement slag helps to reduce risk of environmental pollution, while enrichment of copper, gallium, and germanium in acid washing slag provides convenience for subsequent comprehensive recovery of resources. |
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