Study on separation of cobalt and lithium salts from waste mobile-phone batteries

摘要：

　　The metals in waste mobile-phone batteries may cause environmental pollution.In this paper,leaching with H2SO4+H2O2,P507 extraction,and sedimentation with oxalic acid and carbonic acid were used to deal with waste batteries and obtain cobalt and lithium salts by separation,which shows an easy and feasible method with less waste water disposal.The effects of sulphuric acid concentration,pH value,and lithium ions on the recovery were investigated.When the sulphuric acid concentration was over 0.4 mol/L,the loss of cobalt increased significantly.If pH value of 3.5 was used,it was easy for cobalt and lithium separation with a low cobalt loss.Over several recycles,the recovery of lithium could reach the maximum with the lithium ion concentration of 27.3 g/L.The recovery efficiencies for cobalt and lithium were 90.02% and 86.04%,respectively.

关键词： waste mobile-phone battery separation and recovery cobaltous oxalate lithium carbonate

作者: Gang Jian Jia Guo Xing Wang Chao Sun Ze Zhou Long Yu Fanhai Kong Jian-rong Qiu

作者单位: Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, W State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, China

会议类型: 国际会议

会议名称: The Seventh International Conference on Waste Management and Technology(第七届固体废物管理与技术国际会议(ICWMT7))

会议地点: 北京

会议语种:英文

页码: 495-499

在线出版日期: 2012-09-05（万方平台首次上网日期，不代表论文的发表时间）