杂质对锌电积过程的影响及其消除  

Effect of Impurities on the Electrowinning Process of Zinc and its Removal

作　　者：尹周澜[1] 陈泽元[1] 刘建波[1] 吴贤文[1] 林育鑫[1] 胡振华[1] 陈启元[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《矿冶工程》2010年第6期57-60,共4页Mining and Metallurgical Engineering

基　　金："973"国家重点基础研究发展计划资助项目(2007CB613601)

摘　　要：考察了有机杂质(磷酸三辛酯和异辛酸甲酯)、无机杂质氨、Pb2+对ZnSO4-H2SO4体系中锌电积过程的影响,研究了消除有机杂质磷酸三辛酯和无机杂质Pb2+对锌电积过程影响的方法。实验结果表明:异辛酸甲酯对锌电积过程影响较小,而磷酸三辛酯的影响较大,但通过活性碳吸附处理,电积基本可以得到正常电锌。氨对锌电积过程基本无影响;Pb2+严重影响阴极锌质量,而SrCO3能有效地降低阴极锌含铅量。铅板活化后,加入适量添加剂SrCO能有效地降低阴极板锌含铅量,并在一定条件下得到0号锌。The effects of organic impurities（trioctyl phosphate and methyl ester）,inorganic impurity ammonium and Pb2＋ on the electrowinning process of zinc in ZnSO4-H2SO4 system were investigated.The methods of removing the effects on electrowinning process of zinc by organic impurity trioctyl phosphate and inorganic impurity Pb2＋ were studied.The experimental results showed that methyl ester had little influence on electrowinning process of zinc while trioctyl phosphate had big influence on it.Normal electrolytic zinc can be obtained by electrowinning after adsorption treatment with active carbon.Ammonium had almost no influence on electrowinning process of zinc while Pb2＋ influenced the quality of cathode zinc greatly.The addition of suitable additive SrCO3 can effectively reduce the lead content in cathode zinc after the lead plate activated,and 0# zinc can be obtained under certain conditions.

关 键 词：电积 锌 有机杂质 氨 PB2+ 添加剂 

分 类 号：TF813[冶金工程—有色金属冶金]