某低品位氧化铜矿堆浸液萃取铜的试验研究  

Experimental research on extraction of copper from heap leaching solution of a low-grade oxide copper oxide ore

作　　者：伏晓丹 张海宝 陈燕杰 孟祥龙 张鹏 FU Xiaodan;ZHANG Haibao;CHEN Yanjie;MENG Xianglong;ZHANG Peng(China Nerin Engineering Co.,Ltd.,Nanchang 330038,China)

机构地区：[1]中国瑞林工程技术股份有限公司,南昌330038

出　　处：《江西冶金》2024年第1期43-47,共5页Jiangxi Metallurgy

摘　　要：采用不同品牌的3种萃取剂从某低品位氧化铜矿堆浸液中萃取铜,考察25℃时3种萃取剂的萃取-反萃反应等温平衡相过程及相应的分相速率,绘制萃取和反萃工艺过程的McCabeThiele等温平衡线,根据实验数据计算了3种萃取剂对应的萃取率、反萃率、铜和铁排斥比及净铜迁移量。结果表明,萃取剂A的萃取率为99.3%,反萃率为97%,铜和铁排斥比为816,净铜迁移量为2.68 g/L,是最适合萃取该氧化铜矿堆浸液的萃取剂。Different types of copper extractants were scrutinized during copper solvent extraction and stripping processes of an copper oxide ore's heap leaching solution.The isotherms equilibrium phase process isotherms and corresponding phase separation rates of three different types of copper extractants under cabinet temperature(25℃)were measured.McCabe-Thiele isothermal diagrams were generated,and the extraction efficiency,stripping efficiency,Cu and Fe exclusion rates and net copper transfer were calculated.The results show indicate that extractant A is the most suitable reagent,whose extraction efficiency is 99.3%,the stripping efficiency is 97%,the exclusion rate of copper and iron is 816 and net copper transfer is 2.68 g/L.

关 键 词：铜萃取剂 堆浸 溶剂萃取 等温平衡 分相速率 

分 类 号：TF811[冶金工程—有色金属冶金]