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| Nickel and Cobalt Recovered from Cobalt-nickel Matte Leaching Lixivium |
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Received:December 04, 2011
Revised:December 05, 2011
Accepted:December 06, 2011
Published Online:May 31, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.06.004 |
| KeyWord: nickel; cobalt; iron; sodium sulfide; cobalt-nickel matte |
| Author | Institution |
| ZHOU Yong-mao |
中南大学 冶金科学与工程学院 |
| HU Bao-lei |
湖南 长沙 |
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| Abstract: |
| Cobalt, nickel, and other valuable metals were recovered from cobalt-nickel matte three-stage leaching lixivium with precipitation process with Na2S as precipitant. The effects of dosages of Na2S, acidity (pH), temperature and time on precipitation rates of Fe, Ni, Co with single factor experiment. The results show that the precipitation rates of Co, Ni, Fe are ~99%, ~98%, ~90%, respectively, under the following optimum conditions including Na2S excessive coefficient of 3.0, pH of 3.0~3.5, temperature of 60 ℃, and time of 2 h. |
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