从黝锡矿中提取锡的新工艺及SnS_4^（4－）的电化学性能  

A NEW PROCESS OF TIN HYDROMETALLURGY FROM STANNITE CONCENTRATE AND THE ELECTROCHEMICAL BEHAVIORS OF SnS_4￣(4-)

作　　者：魏昶[1] 罗庆文[1] 叶曙天[1] 

机构地区：[1]昆明理工大学冶金系,昆明贵金属研究所

出　　处：《中国有色金属学报》1996年第1期57-61,共5页The Chinese Journal of Nonferrous Metals

基　　金：国家自然科学基金

摘　　要：介绍了用硫化碱湿法提取锡的新工艺及电化学基础研究。在黝锡矿精矿中配入硫化钠和炭粉进行烧结，然后采用水浸出、净化和电积流程，锡的总回收率在９０％以上。采用多种电化学方法测定和研究了ＳｎＳ_４^（４－）离子在锡电极上的还原动力学参数和机理。A new process of tin hydrometallurgy from stannite concentrate and the electrochemical behaviors of SnS_4￣(4-) were studied. In the new process, stannite concentrate which was blended with sodium sulphide (Na_2S·_9H_2O), charcoal powder and sulpher was sintered at the temperature of 650℃ for an hour. Then the processes of leaching, purification and electrolysis were adopted. The mechanism and kinetics of SnS_4￣(4-) at tin electrode in NaOH-Na_2S-Na_4SnS_4 solution by various kinds of electrochemical methods were also investigated.

关 键 词：黔锡矿 SnS4^4-离子 电化学 炼锡 湿法冶炼 

分 类 号：TF814.032[冶金工程—有色金属冶金]