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| Integrated Leaching of Waste of Ni-Co-Mn Ternary Precursor and Cobalt Oxalate |
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Received:February 27, 2017
Revised:March 01, 2017
Accepted:March 03, 2017
Published Online:June 19, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.07.003 |
| KeyWord:Ni-Co-Mn ternary precursor; cobalt oxalate; waste; integrated leaching |
| Author | Institution |
| LI Wen-jin |
广东佳纳能源科技有限公司 |
| WU Li-jue |
广东佳纳能源科技有限公司 |
| FU Hai-kuo |
广东佳纳能源科技有限公司 |
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| Abstract: |
| Ni-Co-Mn ternary precursor (NixCoyMn(1-x-y)(OH)2) waste and cobalt oxalate (CoC2O4) waste were integrated leached. Effects of mass ratio of (NixCoyMn(1-x-y)(OH)2) and CoC2O4 waste, initial acidity, reaction temperature, L/S, and reaction time on leaching rate of Ni, Co, and Mn were investigated. The results show that leaching rate of Ni, Co, and Mn is 99.75%, 96.76%, and 99.80%, respectively under the optimum conditions including mass ratio of (NixCoyMn(1-x-y)(OH)2) and CoC2O4 waste of 5︰3.5, initial acidity of 4 mol/L, reaction temperature of 50 ℃, L/S of 4︰1, and reaction time of 120 min. Lixivium can be used to prepare NixCoyMn(1-x-y)(OH)2 directly. Objective to integrate leaching and comprehensive recycling of two wastes is realized. |
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