| 青海某含砷含碳微细浸染型难处理金矿石选矿试验研究 |
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| 引用本文： | 常征,熊馨,孙晓华.青海某含砷含碳微细浸染型难处理金矿石选矿试验研究[J].黄金,2021,42(1):55-58,63. |
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| 作者姓名： | 常征 熊馨 孙晓华 |
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| 作者单位： | 青海省地质矿产测试应用中心;青海省地质矿产测试应用中心;青海省地质矿产测试应用中心 |
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| 基金项目： | 青海省重点研发与转化计划项目(2019-SF-139)。 |
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| 摘 要： | 青海某含砷含碳微细浸染型金矿石氧化率达40%,易泥化绢云母相对含量达26%。针对该矿石性质,进行了选矿工艺研究。结果表明:采用原矿全泥氰化、重选、浮选等单一流程,金回收指标均不理想;采用精扫选、中矿分流浮选—尾矿再磨、环保浸金剂浸出联合工艺,在正交试验获得的最佳条件下,可获得金精矿金品位31.95 g/t,金总回收率88.05%的较好指标,实现了金的高效回收。
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| 关 键 词： | 微细浸染型金矿 含砷含碳 中矿分流 浮选 环保浸金剂 联合工艺 |
Experimental research on the mineral processing of refractory microfine disseminated arsenic and carbonaceous gold ore from Qinghai |
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| Chang Zheng,Xiong Xin,Sun Xiaohua.Experimental research on the mineral processing of refractory microfine disseminated arsenic and carbonaceous gold ore from Qinghai[J].Gold,2021,42(1):55-58,63. |
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| Authors: | Chang Zheng Xiong Xin Sun Xiaohua |
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| Affiliation: | (Qinghai Provincial Geology and Mineral Resources Test Application Center) |
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| Abstract: | The oxidation rate of a microfine disseminated arsenic and carbonaceous gold ore from Qinghai is 40%,and the relative content of sericite prone to argillization is 26%.According to the ore properties,the mineral processing technology was studied.The results show that the gold recovery index is not ideal by using single processes such as run-of-mill ore all-sliming cyanidation,gravity separation and flotation;under the optimal conditions obtained by orthogonal tests,the joint process combining cleaning and scavenging,middlings diversion flotation-tailings regrinding,and environment-friendly reagent leaching can obtain the gold concentrate with gold grade 31.95 g/t and the total recovery rate of gold is 88.05%,which is good,realizing the efficient recovery of gold. |
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| Keywords: | microfine disseminated gold ore arsenic and carbonaceous middlings diversion flotation environment-friendly reagent joint process |
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