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| New Recovery Process for Zinc Hydrometallurgy Ni-Co-Bearing Purification Slag |
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Received:August 31, 2013
Revised:September 03, 2013
Accepted:September 04, 2013
Published Online:November 20, 2013
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| DOI：10.3969/j.issn.1007-7545.2013.12.004 |
| KeyWord:zinc hydrometallurgy; nickel cobalt residue; full hydrometallurgy; new process; zinc |
| Author | Institution |
| MA Jin |
西北矿冶研究院 |
| HE Guo-cai |
西北矿冶研究院 |
| CHEN Liang |
西北矿冶研究院 |
| LU Xing-wu |
西北矿冶研究院 |
| YI Chao |
西北矿冶研究院 |
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| Abstract: |
| Ni-Co-bearing purification slag from zinc hydrometallurgy was leached by full hydrometallurgy and Zi-Co was separated with activating agent to recover cobalt. The results show that the zinc leaching rate is above 98% with recovery rate of above 95% under the following optimum two-stage leaching processes including leaching temperature of 70 ℃, leaching time of 1.5 h, ratio of liquid to solid of 4∶1, pH of the end of first leaching stage of 4.5~5.0, pH of the end of second leaching stage of under 0.5. |
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