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| De-copper Research for Crude Antimony Containing High Copper by Fire-refining |
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| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:Antimony,Copper-removing,Fire-refining, |
| CAO Hui,ZHANG Chuan-fu,ZHANG Xun-peng,PENG Rong-qiu,Dai Xi |
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| Abstract: |
| A liquation-sulphidizing refining process was evaluated to removal copper from crude antinomy containing high copper. The reactive mechanism and optimum conditions were discussed in detail. More than 90% copper was removed in optimum temperature and optimum reactive time by liquation, because of the formation of Cu 3As?Cu 5As 2 according to the reaction between copper and arsenic. Reaction between sulfide regents and copper is controlled by diffusion process. About 75% remained copper was removed by the addition of S or Sb 2S 3. The Cu content was reduced to 0.04% in the antimony by this method. |
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