从某低品位氧化铜钴矿石中直接浸出铜钴  

Direct Leaching of Copper and Cobalt From a Low-grade Copper-cobalt Oxide Ore

作　　者：郭双华[1] GUO Shuanghua(Yangzhou College of Industrial Technology,Yangzhou 225127,China)

机构地区：[1]扬州工业职业技术学院,江苏扬州225127

出　　处：《湿法冶金》2021年第3期190-192,共3页Hydrometallurgy of China

基　　金：2020年江苏省高职院校青年教师企业实践培训项目(2020QYSJ216);扬州市市科技局科技计划项目(YZ2020171)。

摘　　要：研究了从某低品位氧化铜钴矿石中还原酸浸铜、钴,考察了矿石粒度、反应温度、硫酸用量、还原剂亚硫酸钠用量对铜、钴浸出率的影响。结果表明:在矿石粒度-74μm占80%、液固体积质量比2/1、硫酸用量为矿石质量的8%、还原剂亚硫酸钠用量为矿石质量的12%、反应时间4 h条件下,钴浸出率大于93%,铜浸出率大于95%,浸出效果较好。Leaching of copper and cobalt from a low-grade copper-cobalt oxide ore using sodium sulfite as reducing agent and sulfuric acid as leaching agent was investigated.The effects of ore particle size,temperature,amount of sodium sulfite and sulfuric acid on leaching rate of copper and cobalt were examined.The results show that leaching rate of cobalt and copper are over 93%and 95%,respectively,under the conditions of ore particle size of-74μm accounting 80%,liquid volume-to-solid mass of 2/1,sulfuric acid mass accounting for ore mass of 8%,reducing agent mass accounting for ore mass of 12%,and reaction time of 4 h.

关 键 词：氧化铜钴矿 铜 钴 还原 浸出 

分 类 号：TF803.21[冶金工程—有色金属冶金] TF811