自然科学版 英文版
自然科学版 英文版
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中南大学学报(英文版)

Journal of Central South University

Vol. 15    No. 2    April 2008

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Industrial experiment of copper electrolyte purification by copper arsenite
ZHENG Ya-jie(郑雅杰)1, XIAO Fa-xin(肖发新)1, WANG Yong(王 勇)1, 2,LI Chun-hua(李春华)1, 2, XU Wei(许 卫)1, 2, JIAN Hong-sheng(简洪生)1, 2, MA Yu-tian(马玉天)1

1.School of Metallurgical Science and Engineering, Central South University,Changsha 410083, China;2. Daye Nonferrous Metal Limited Company, Huangshi 435005, China

Abstract:Copper electrolyte was purified by copper arsenite that was prepared with As2O3. And electrolysis experiments of purified electrolyte were carried out at 235 and 305 A/m2, respectively. The results show that the yield of copper arsenite is up to 98.64% when the molar ratio of Cu to As is 1.5 in the preparation of copper arsenite. The removal rates of Sb and Bi reach 74.11% and 65.60% respectively after copper arsenite is added in electrolyte. The concentrations of As, Sb and Bi in electrolyte nearly remain constant during electrolysis of 13 d. The appearances of cathode copper obtained at 235 and 305 A/m2 are slippery and even, and the qualification rate is 100% according to the Chinese standard of high-pure cathode copper(GB/T467−97).

 

Key words: copper arsenite; copper electrolyte; purification; electrolysis: industrial experiment

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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