Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第7卷    第2期    总第23期    1997年6月

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文章编号:(1997)02-39-3
控制阴极电势电积法脱铜砷
陈白珍1 仇勇海1 梅显芝1 赖永玲1马丹文2张祥远2钟声涛2汪友元2

(1.中南工业大学冶金物理化学研究所, 长沙 410083;
2.白银有色金属公司, 白银730900
)

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0.5 g/L,砷含量小于1 g/L,该方法具有 节能与环保双重效益。

 

关键字:   铜电解液    阴极电势    砷

SEPARATION OF COPPER AND ARSENIC BY ELECTROWINNING OF CONTROLLING CATHODIC POTENTIAL
Chen Baizhen1, Qiu Yonghai1, Mei Xianzhi1, Lai Yongling1 Ma Danwen2, Zhang Xiangyuan2, Zhong Shengtao2, Wang Youyuan2<

1.Institute of Metallurgical Physicochemistry and Materials,
Central South University of Technology, Changsha 410083
2.Baiying Company of Non-ferrous Metal, Baiying 730900

Abstract: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 eletro-
winning 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.

 

Key words:     copper electrolyte    cathodic potential    arsenic

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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