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| Study on Iron Removal from Cobalt Leaching Solution |
| Received:February 13, 2017 Revised:February 28, 2017 |
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| DOI：doi：10.3969/j.issn.1007-7545.2017.06.004 |
| KeyWord:cobalt; lixivium; iron removal; neutralization hydrolysis; potential; pH value |
| Author | Institution |
| zhangsuchao |
金川集团股份有限公司 镍钴研究设计院 |
| Yaolixue |
金川集团股份有限公司 镍都实业公司 |
| Lusujun |
金川集团股份有限公司 镍钴研究设计院 |
| Zhangpeng |
金川集团股份有限公司 镍钴研究设计院 |
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| Abstract: |
| A cobalt smelting plant applyies neutralizing hydrolysis process to remove iron. Process of iron removal has low iron removal rate and high cobalt entrainment in slag (up to 14%). Iron was removed from lixivium after copper removal by neutralizing hydrolysis process. Effect of parameter on iron removal was investigated. The results show that iron removal rate is 99% and cobalt entrainment rate is 1% below under the conditions including redox potential of 0.40 V, terminal pH value of 4.00~4.25, iron removal time of 6.5 h above, air flow of 0.8 time volum of solution per minute, and temperature of 50 ℃ above. |
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