Recovery of indium and lead from lead bullion  

作　　者：何静 王瑞祥 刘维 

机构地区：[1]School of Metallurgical Science and Engineering,Central South University [2]School of Materials and Chemical Engineering,Jiangxi University of Science and Technology

出　　处：《Journal of Central South University of Technology》2008年第6期835-839,共5页中南工业大学学报（英文版）

基　　金：Project(2007CB613604) supported by the Major State Basic Research and Development Program of China;Project(50674104) supported by the National Natural Science Foundation of China;Project(GJJ08279) supported by the Jiangxi Provincial Department of Education, China

摘　　要：Lead and indium were recovered by electrolysis and nonequilibrium solvent extraction process from lead bullion. The effects of current density, electrolytic period and circle arpJ ant of electrolyte on the electrochemical dissolution of lead and indium were investigated. The effects of extraction phase ratio and mixing time on solvent extraction of indium and striping phase ratio and stripping stage on the loaded organic phase stripping were also investigated. The experimental results indicate that under optimum conditions, the purity of lead deposited on cathode is 98.5% and the deposit rate of lead is 99.9%, the dissolution rate of indium is 94.28%, the extraction rate of indium is 98.69%, the stripping rate of indium is almost 100%, and the impurity elements, such as Zn, Fe and Sn can be removed.Lead and indium were recovered by electrolysis and nonequilibrium solvent extraction process from lead bullion. The effects of current density, electrolytic period and circle amount of electrolyte on the electrochemical dissolution of lead and indium were investigated. The effects of extraction phase ratio and mixing time on solvent extraction of indium and striping phase ratio and stripping stage on the loaded organic phase stripping were also investigated. The experimental results indicate that under optimum conditions, the purity of lead deposited on cathode is 98.5% and the deposit rate of lead is 99.9%, the dissolution rate of indium is 94.28%, the extraction rate of indium is 98.69%, the stripping rate of indium is almost 100%, and the impurity elements, such as Zn, Fe and Sn can be removed.

关 键 词：lead bullion INDIUM electrochemical dissolution nonequilibrium solvent extraction 

分 类 号：TF812[冶金工程—有色金属冶金]