控制阴极电势电积法脱铜砷  

SEPARATION OF COPPER AND ARSENIC BY ELECTROWINNING OF CONTROLLING CATHODIC POTENTIAL

作　　者：陈白珍[1,2] 仇勇海 梅显芝[1,2] 赖永玲 马丹文 张祥远 钟声涛[1,2] 汪友元 

机构地区：[1]中南工业大学冶金物理化学研究所 [2]白银有色金属公司

出　　处：《中国有色金属学报》1997年第2期39-41,共3页The Chinese Journal of Nonferrous Metals

摘　　要：在净化铜电解废液工艺流程中，控制阴极电势值，使铜砷优先析出，并抑制氢气与砷化氢的析出，以达到净化电解液的目的。控制阴极电势脱铜砷电积法的脱铜电流效率达到８０％以上，电积后液中铜含量小于０．５ｇ／Ｌ，砷含量小于１ｇ／Ｌ，该方法具有节能与环保双重效益。In order to avoid the evolution of arsine in the process of purifying waste copper electrolyte, the electrowinning of controlling cathodic potential has been proposed. By controlling the value of cathodic potential, copper and arsenic can be first separated and then hydrogen and arsine can not be evolved. In small test the value of current efficiency reached 80%. In the solution after eletrowinning copper content was less than 1 g/L, arsenic content less than 0.5 g/L. The dual benefit in both environment protection and economization of energy could be acquired by the purification process.

关 键 词：炼铜 电解液 阴极电势 砷 电积法 净化 废液 

分 类 号：TF811.032[冶金工程—有色金属冶金] X756.03[环境科学与工程—环境工程]