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| Chloridizing Roasting Expanding Test of Pyrite Cinder |
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Received:June 17, 2013
Revised:June 17, 2013
Accepted:June 18, 2013
Published Online:September 29, 2013
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| DOI：10.3969/j.issn.1007-7545.2013.10.001 |
| KeyWord:pyrite cinder; chloridizing roasting; pelletizing; rotary kiln; chloridizing pellet |
| Author | Institution |
| changyaochao |
北京矿冶研究总院冶金所 |
| xuxiaohui |
北京矿冶研究总院冶金所 |
| wangyun |
北京矿冶研究总院工程公司 |
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| Abstract: |
| Valuable metals such as Au, Ag, and Cu were comprehensively recovered from pyrite cinder by chloridizing roasting process. The effects of pelletizing, roasting temperature and staying duration on metal volatilization rates and mass balance of materials and metals were investigated. The results show that the volatilization rates of Au, Ag, Cu, Pb, Zn are 95.6%, 52.5%, 73.1%, 93.9%, and 75.2% respectively under the optimum conditions including roasting temperature of 1 250 ℃ and staying duration of 1.83 h. The contents of Cu, Pb, Zn in chloridizing pellet are all below 0.1%, and the compression strength of pellet is 4 0~6.5 kN. |
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