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| Study on Comprehensive Recovery Process for Purification Cobalt Residue from Zinc Hydrometallurgy |
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Received:April 30, 2019
Revised:April 30, 2019
Accepted:May 05, 2019
Published Online:August 16, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.09.012 |
| KeyWord:zinc hydrometallurgy; cobalt residue; acid pickling; roasting; reduction leaching |
| Author | Institution |
| LiHe |
北京矿冶科技集团有限公司 |
| Chen Lulu |
北京矿冶科技集团有限公司 |
| Wang Haibei |
北京矿冶科技集团有限公司 |
| Zhang Bangsheng |
北京矿冶科技集团有限公司 |
| Jiang Yingping |
北京矿冶科技集团有限公司 |
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| Abstract: |
| Zinc was recovered by acid pickling and cobalt was recovered by roasting - reduction leaching from purification cobalt residue of zinc hydrometallurgy. The results show that zinc and cobalt are effectively separated after acid pickling for 2 h with the L/S=2 and initial acidity of 35 g/L. Acid pickling residues are roasted under temperature of 500 ℃ for 30 minutes, cobalt leaching rate is 97.07% from calcine under the conditions including Na2SO3 dosing of 12%, initial acidity of 200 g/L, L/S=4, temperature of 80 ℃, and time of 3 h. |
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