含铜难处理金精矿铜萃取回收工艺研究  

Copper Extraction and Recovery from Copper Bearing Refractory Gold Concentrate

作　　者：吴在玖 

机构地区：[1]紫金矿业集团股份有限公司,福建上杭364200

出　　处：《有色冶金设计与研究》2013年第2期15-17,共3页Nonferrous Metals Engineering & Research

基　　金：国家重点基础研究发展规划项目(No.2010CB735501)

摘　　要：采用萃取工艺从含铜难处理金精矿焙砂浸出液中回收铜,考查了萃取剂浓度、相比O/A、混合时间、pH值等因素对铜萃取效率的影响,获得优化工艺条件:萃取剂浓度为25%,相比O/A=2:1,混合时间为3 min,pH值1.5～2。在优化工艺条件下两级逆流萃取,铜的萃取率为98.53%。The extraction technology was used to recover copper from copper bearing refractory gold concentrate and the effect of extraetant concentration, ratio of oil phase to aqueous phase （O/A）, mixing time and pH value was studied. The optimal process condition was obtained as follows： extraetant concentration is 25%, O/A is 2：1, mixing time is 3min and pH value is 1.5~2. Under the best working conditions, the extraction rate of copper is 98.53% by two-stage counter current extraction.

关 键 词：含铜金精矿 铜 萃取 工艺条件 

分 类 号：TF111[冶金工程—冶金物理化学]