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| Selective Recovery of Zinc and Cobalt from Purified Cobalt Residue in Zinc Hydrometallurgy |
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Received:December 07, 2018
Revised:December 10, 2018
Accepted:December 12, 2018
Published Online:March 19, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.04.002 |
| KeyWord:zinc hydrometallurgy; purified cobalt residue; selective leaching; zinc; cobalt; leaching rate |
| Author | Institution |
| li qiang |
1、三明学院 资源与化工学院;2、福建省资源环境监测与可持续经营利用重点实验室 |
| li qi yong |
三明学院 资源与化工学院;福建省资源环境监测与可持续经营利用重点实验室 |
| xu ye |
三明学院 资源与化工学院 |
| nie li meng |
三明学院 资源与化工学院 |
| yang yu ting |
三明学院 资源与化工学院 |
| deng jin peng |
三明学院 资源与化工学院 |
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| Abstract: |
| Zinc and cobalt were selectively recovered from purified cobalt slag in zinc hydrometallurgy by selective leaching, acid leaching, and extraction. The results show that zinc leaching rate is 95% above, and cobalt leaching rate is only 6.24% under the selective leaching conditions including particle size of purified cobalt residue of -0.530 mm, pH value of ≥3.5, pH value of leaching terminal point of 4.5, leaching time of 3 h, L/S=4/1, and leaching temperature of 30 ℃. After selective leaching, zinc enters into leaching solution which can be reused for zinc hydrometallurgy while Co was reserved in leaching residue and can be recycled by acid leaching dissolution and P204 extracting purification. |
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