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| Study on Roasting and Leaching of Cobalt-Sulfur Concentrates |
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Received:August 12, 2015
Revised:August 14, 2015
Accepted:August 17, 2015
Published Online:December 24, 2015
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| DOI：10.3969/j.issn.1007-7545.2016.01.002 |
| KeyWord:coblat-sulfur concentrates; sulfating roasting; leaching |
| Author | Institution |
| Liu Wei |
北京矿冶研究总院 |
| Jiang Xunxiong |
北京矿冶研究总院 |
| Zhao Lei |
北京矿冶研究总院 |
| Feng Linyong |
北京矿冶研究总院 |
| Li Yaoxing |
徐州北矿金属循环利用研究院 |
| Wang Guanghui |
徐州北矿金属循环利用研究院 |
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| Abstract: |
| Cobalt-sulfur concentrates bearing with high cobalt, low sulfur and considerable amount of copper were roasted and leached. The effects of roasting temperature, roasting time, additive dosage, leaching time, leaching temperature and ratio of liquid to solid on leaching of copper and cobalt were investigated. The results show that leaching rate of Co and Cu is 91% and 90% respectively when concentrates are heated to 620 ℃ with heating rate of 2.7 ℃/min and roasted for 3 h, and calcine is leached at 80 ℃ for 2 h by 30 g/L sulfuric acid with slurry concentration of 33%. |
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