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| Recovery of Ni and Co from Nickel Laterite with Two Stages Sulphation Roasting—Water Leaching Process |
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Received:August 01, 2011
Revised:August 02, 2011
Accepted:August 02, 2011
Published Online:October 26, 2011
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| DOI：doi：10.3969/j.issn.1007-7545.2012.02.004 |
| KeyWord:nonferrous nickel laterite; sulphation roasting; water leaching; nickel; cobalt |
| Author | Institution |
| Wang yunhua |
贵研铂业股份有限公司 |
| Dong haigang |
贵研铂业股份有限公司 |
| Fan xingxiang |
贵研铂业股份有限公司 |
| Wu yuedong |
贵研铂业股份有限公司 |
| Zhao jiachun |
贵研铂业股份有限公司 |
| Zan linhan |
贵研铂业股份有限公司 |
| Li baiyu |
贵研铂业股份有限公司 |
| Li nan |
贵研铂业股份有限公司 |
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| Abstract: |
| Ni and Co was recovered from an Australia nonferrous nickel laterite by two stages sulpation roasting-water leaching process. The process and conditions was studied. The effects of acid to materials ratio, roasting temperature and time in low roasting action and high roasting action on Ni and Co leaching rate were investigated, respectively. The results show that the sulfation roasting is performed under the conditions of sulfuric acid to materials ratio 0.6, first low temperature roasting temperature 250 ℃, roasting time 60 min, second high temperature roasting temperature 650 ℃, roasting time 3 h; the roasted product is subjected to water leaching, the leaching rate of Ni and Co are up to 93.38% and 91.95%, respectively. |
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