Mechanism of Cobalt Removal from High Cobalt Zinc Sulphate Solution by Zinc Dust

摘要：

The mechanism of cobalt removal from zinc sulfate solution with zinc dust is still not understood well.The experiments in this paper were carried out by zinc dust from zinc sulfate solution with high cobalt to study the mechanism of cobalt removal.Residues after the cementation process from zinc sulfate solution were analyzed by SEM and Electron probe micro-analysis (EPMA) to investigate the morphology of products.Different temperature will cause different structure of particles.With the increasement of temperature,cobalt removal can be improved considerably.The mechanism of cobalt removal by zinc dust is thought as follows: firstly,the cobalt ion forms Co-Zn alloy with zinc particles,and the reaction reaches equilibrium quickly;secondly,the Co-Zn alloy continues reacting to Co with Co2+,which is the control procedure of the whole reaction.

关键词： Zinc sulfate solution Cobalt removal Electron probe micro-analysis Cementation Zinc dust

作者: G.S.Zeng

作者单位: School of Environment and Chemical Engineering,Nanchang Hangkong University,Nanchang,China

会议类型: 国际会议

会议名称: XXIV International Mineral Processing Congress(第24届国际矿物加工大会)

会议地点: 北京

会议语种:英文

页码: 3407-3412

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）