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Industrial experiment of copper electrolyte purification by copper arsenite

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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).

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Authors and Affiliations

  1. School of Metallurgical Science and Engineering, Central South University, Changsha, 410083, China

    Ya-jie Zheng  (郑雅杰), Fa-xin Xiao  (肖发新), Yong Wang  (王勇), Chun-hua Li  (李春华), Wei Xu  (许卫), Hong-sheng Jian  (简洪生) & Yu-tian Ma  (马玉天)

  2. Daye Nonferrous Metal Limited Company, Huangshi, 435005, China

    Yong Wang  (王勇), Chun-hua Li  (李春华), Wei Xu  (许卫) & Hong-sheng Jian  (简洪生)

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  1. Ya-jie Zheng  (郑雅杰)
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  2. Fa-xin Xiao  (肖发新)
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  3. Yong Wang  (王勇)
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  4. Chun-hua Li  (李春华)
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  5. Wei Xu  (许卫)
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  6. Hong-sheng Jian  (简洪生)
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  7. Yu-tian Ma  (马玉天)
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Corresponding author

Correspondence to Ya-jie Zheng  (郑雅杰).

Additional information

Foundation item: Project(200501045) supported by Innovation Fund of Hubei Daye Nonferrous Metal Limited Company of China

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Zheng, Yj., Xiao, Fx., Wang, Y. et al. Industrial experiment of copper electrolyte purification by copper arsenite. J. Cent. South Univ. Technol. 15, 204–208 (2008). https://doi.org/10.1007/s11771-008-0039-2

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  • DOI: https://doi.org/10.1007/s11771-008-0039-2

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