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| Study of Leaching of Indium, Germanium and Zinc from Zinc Calcining |
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Received:January 09, 2014
Revised:January 12, 2014
Accepted:January 13, 2014
Published Online:June 23, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.07.004 |
| KeyWord:zinc dust; calcining; leaching; zinc; indium; germanium |
| Author | Institution |
| YANG Yong-qiang |
北京矿冶研究总院 |
| WANG Cheng-yan |
北京矿冶研究总院 |
| YANG Wei-jiao |
北京矿冶研究总院 |
| YUAN Wen-hui |
北京矿冶研究总院 |
| XING Peng |
北京矿冶研究总院 |
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| Abstract: |
| Generated from arsenic rich zinc dust by sulfation roasting process, calcine was applied as raw material to investigate effects of leaching methods, temperature, H2SO4 concentration and ratio of liquid to solid (L/S) on leaching of indium, germanium and zinc, respectively. The results show that most of zinc in calcining can be leached with water, but higher temperature and H2SO4 concentration are in need to leach indium and germanium. The optimum leaching conditions for indium and germanium include temperature of 95 ℃ and H2SO4 concentration of 150 g/L, with no effect of L/S on leaching. Under these conditions, leaching rate of indium, germanium and zinc are >95%, >75%, and >98%, respectively. |
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