| 难浸含砷金精矿两段生物氧化—氰化提金工艺试验研究 |
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| 引用本文： | 郑艳平,祁玉海,赵禧民.难浸含砷金精矿两段生物氧化—氰化提金工艺试验研究[J].黄金,2013,34(3):50-53. |
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| 作者姓名： | 郑艳平 祁玉海 赵禧民 |
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| 作者单位： | 1. 长春黄金研究院
2. 中国黄金集团湖南矿业有限公司 |
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| 摘 要： | 某难浸含砷金精矿中金矿物嵌布粒度极细,有92.00%呈次显微金（不可见）的形式存在,且金矿物嵌存状态以包裹金为主,占94.58%。对金精矿进行常规氰化浸出,金的浸出率仅为3.41%。通过采用两段生物氧化预处理—氰化提金工艺,金的浸出率提高到95.02%,比常规氰化提高了91.61%。
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| 关 键 词： | 难浸金精矿 两段生物氧化 氰化提金 |
Study on the two-stage biooxidation-cyanidation process in leaching refractory arsenious gold concentrates |
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| Zheng Yanping,Qi Yuhai,Zhao Ximin.Study on the two-stage biooxidation-cyanidation process in leaching refractory arsenious gold concentrates[J].Gold,2013,34(3):50-53. |
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| Authors: | Zheng Yanping Qi Yuhai Zhao Ximin |
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| Affiliation: | 1. Changchun Gold Research Institute; 2. Hunan mining Co., Ltd. , China national gold group corporation) |
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| Abstract: | The dissemination of gold mineral existing in the refractory arsenious gold concentrates is so fine that there are 92.00 % of them taking the form of submicroscopic gold （ not visible）, and 94.58 % of them are embedded inclusion gold. Conventional cyanide leaching of the concentrates only achieves a leaching rate of 3.41%. However, gold leaching rate can reach 95.02 % after applying the two-stage biooxidation-cyanidation process,which is 91.61% higher than conventional cyanide leaching process. |
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| Keywords: | refractory gold concentrate two-stage biooxidation cyanide leaching |
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