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| Comprehensive Utilization of Copper Slag By-product in Zinc Hydrometallurgy |
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Received:December 12, 2011
Revised:December 13, 2011
Accepted:December 13, 2011
Published Online:May 31, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.06.006 |
| KeyWord:copper slag; comprehensive utilization; extraction; zinc hydrometallurgy |
| Author | Institution |
| Lu Xingwu |
西北矿冶研究院冶金新材料研究所 |
| Shao Chuanbing |
西北矿冶研究院冶金新材料研究所 |
| Yi Chao |
西北矿冶研究院冶金新材料研究所 |
| Li Yuliang |
西北矿冶研究院冶金新材料研究所 |
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| Abstract: |
| The new comprehensive utilization technology of copper slag by-product in zinc hydrometallurgy was investigated. The optimal leaching conditions including ratio of liquid to solid of 10∶1, leaching temperature of 80 ℃, leaching agent (sulfuric acid) concentration of 3.5 mol/L, and leaching time of 8 h. The copper concentration in lixivium reaches 30~45 g/L, and the copper leaching rate is higher than 98%. The copper concentration in stripping solution reaches 45~50 g/L after extraction, washing and three-stage cross-flow stripping of copper. The cathode copper can be produced with electrowinning process. |
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