溶液中镍钴萃取分离技术研究状况  

Review on Separation of Nickel and Cobalt in Solution by Solvent Extraction Technology

作　　者：徐志刚 季尚军 王朝华 邹潜 张冬梅 王飞 周涛[1] XU Zhigang;JI Shangjun;WANG Chaohua;ZOU Qian;ZHANG Dongmei;WANG Fei;ZHOU Tao(College of Chemistry and Chemical Engineering,Central South University, Changsha 410083,China;Chongqing Kopper Chemical Industry Co.,Ltd.,Chongqing 401221,China)

机构地区：[1]中南大学化学化工学院,湖南长沙410083 [2]重庆康普化学工业股份有限公司,重庆401221

出　　处：《湿法冶金》2018年第5期342-348,共7页Hydrometallurgy of China

摘　　要：介绍了近年来溶液中镍钴分离技术研究状况及可用于各种溶液,如硫酸、盐酸、硝酸溶液中镍钴分离的萃取剂、萃取工艺及协萃体系。对于成分复杂的溶液,采用单一的萃取剂很难将镍、钴与其他杂质金属离子有效分离,而利用协萃体系可以得到较好的分离效果。介绍了几种协萃体系,如螯合萃取剂-有机羧酸萃取剂体系,羟肟萃取剂-羧酸萃取剂体系,羧酸萃取剂-有机磷类萃取剂体系,羟肟萃取剂-有机磷酸类萃取剂体系,羧酸萃取剂-吡啶羧酸酯体系,有机磷酸萃取剂-有机磷酸萃取剂体系,对镍钴萃取分离的效果。比较了这些协萃体系较单一萃取剂的优势,指出协萃体系将成为镍钴分离提纯的发展趋势。The research status on separation of nickel and cobalt in solution was introduced.Such as the extraction reagents selection,process application and synergistic extraction systems used for separating nickel and cobalt in sulfate,chloride and nitrate leaching solutions were introduced.It is difficult to efficiently separate nickel and cobalt from other impurities in the leaching solution which contains many kinds of metal ions,such as copper,iron,zinc,manganese,magnesium,aluminum,calcium,cadmium and so on.Using synergistic extraction system can obtain good separation effect.Synergistic extraction systems,such as chelating reagents-organic carboxylic reagents systems,hydroxyoximes reagents-organic carboxylic reagents systems,organic carboxylic reagents-organophosphorous reagents systems,organophosphorous reagents-hydroxyoximes reagents systems,organic carboxylic reagents-pyridinecarboxylate esters systems,organophosphorous reagents-organophosphorous reagents systems were introduced.The advantages of the synergistic extraction systems were compared with the single extracting reagent system.The synergistic extraction systems may be a developing trend for separating nickel from cobalt in the future.

关 键 词：镍 钴 分离 萃取剂 协同萃取 

分 类 号：TF804.2[冶金工程—有色金属冶金] TF815