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| Experimental Study on Heap Leaching of Nickel Laterite |
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Received:November 29, 2011
Revised:November 29, 2011
Accepted:December 05, 2011
Published Online:May 31, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.06.002 |
| KeyWord:nickel; nickel laterite; heap leaching |
| Author | Institution |
| TONG weifeng |
昆明贵金属研究所，稀贵金属综合利用新技术国家重点实验室 |
| Wang Yunhua |
昆明贵金属研究所，稀贵金属综合利用新技术国家重点实验室 |
| Wu Xiaofeng |
昆明贵金属研究所，稀贵金属综合利用新技术国家重点实验室 |
| FAN xingxiang |
昆明贵金属研究所，稀贵金属综合利用新技术国家重点实验室 |
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| Abstract: |
| An Australian nickel laterite ore was heap leached with the two stage countercurrent process. The effects of particle size, acid concentration, leaching time, and heap high on nickel leaching rate were investigated. The results show that the nickel leaching rate is up to 80.28% in the whole process. In the first stage, the ore with particle size of 2~8 mm is leached for 16 days with second stage leaching lixivium, and in the second stage, the first leaching residue is heap leached for 60 to 70 days with the sulfuric acid concentration of 22%. |
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