某铜钴混合矿的直接浸出及选冶性能研究  

Direct Leaching and Flotation-Leaching Performance of the Copper Cobalt Mixed Ore

作　　者：王生普 赵旭 WANG Shengpu;ZHAO Xu(Minmetals Nonferrous Metals Co.,Ltd.,Beijing 100089,China;BGRIMM Technology Group,Beijing 100160,China)

机构地区：[1]五矿有色金属股份有限公司,北京100089 [2]矿冶科技集团有限公司,北京100160

出　　处：《湿法冶金》2025年第1期25-31,共7页Hydrometallurgy of China

基　　金：国家重点研发计划项目(2022YFC2904604)。

摘　　要：研究了采用氧化浸出法和还原浸出法直接浸出刚果(金)某铜钴混合矿中的Cu、Co,对比分析了2种方法Cu、Co浸出行为,并进一步探讨了浮选—氧化浸出选冶联合法对铜、钴浸出率的提升效果。结果表明:氧化浸出和还原浸出的Cu浸出率分别为80%和70%左右,Co浸出率分别为63%和57%左右,氧化浸出效果优于还原浸出;通过采用浮选—氧化浸出选冶联合法,闭路浮选精矿Cu和Co的品位分别为16.84%及6.53%,Cu和Co综合回收率分别为91.71%和61.87%,金属回收效果得到明显提升。The direct leaching of Cu and Co from a copper-cobalt mixed ore in Congo(Kinshasa)by oxidation leaching method and reduction leaching method was studied.The leaching behavior of Cu and Co by the two methods was compared and analyzed.The effect of flotation—oxidation leaching on the leaching rate of copper and cobalt was further discussed.The results show that the leaching rates of Cu for oxidation and reduction leaching are about 80%and 70%respectively,and the leaching rates of Co are about 63%and 57%respectively,and the oxidation leaching effect is better than that of reduction leaching.By using the combined flotation—oxidation leaching process,the Cu and Co grades in closed-circuit flotation concentrates are 16.84%and 6.53%,respectively and the combined recovery rates of Cu and Co are 91.71%and 61.87%,respectively.The recovery effect of Cu and Co can be significantly improved.

关 键 词：刚果(金) 铜钴混合矿 氧化浸出法 还原浸出法 浮选 铜 钴 

分 类 号：TF811[冶金工程—有色金属冶金] TF816