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| Study on Cu-Co Concentrate with Roast-Leaching Process |
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Received:May 30, 2012
Revised:June 01, 2012
Accepted:June 01, 2012
Published Online:July 25, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.08.005 |
| KeyWord:copper and cobalt ore; copper and cobalt concentrate; roasting; leaching |
| Author | Institution |
| sunliugen |
北京矿冶研究总院 |
| Wang Yun |
北京矿冶研究总院 |
| Liu Daxue |
北京矿冶研究总院 |
| Yuan Chaoxin |
北京矿冶研究总院 |
| Chang Yaochao |
北京矿冶研究总院 |
| Huang Haihui |
北京矿冶研究总院 |
| Xu Xiaohui |
北京矿冶研究总院 |
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| Abstract: |
| Copper and cobalt were recovered from copper and cobalt concentrates from CMSK Ltd of DR Congo with a series of processes including floatation, sulfating roasting, acidic leaching, extraction and electro-deposition (SX-EW-Co), iron removing and cobalt precipitation. The results show that the optimum roasting conditions including particle size of -0.074 mm of 90%, Na2SO4 dosage of 7.5%, temperature of 700 ℃, and roasting time of 30 min. The leaching rate of copper and cobalt is 97.61% and 95.92% respectively after the calcine is leached through the two-stage acidic leaching process. |
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