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Gold Science and Technology ›› 2013, Vol. 21 ›› Issue (5): 97-101.

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Copper Removal from High-copper Gold-loaded Carbon by Catalytic Oxidation Technique

CHEN Shuping，WU Zengling，LAN Bibo，LIU Xiaoying，XU Tao，ZHONG Shuiping，ZOU Laichang   

  1. State Key Laboratory of Comprehensive Utilization of Low-Grade Refractory Gold Ores，Zijin Mining Group Co.，Ltd.，Shanghang   364200，Fujian，China
  • Received:2013-06-18 Revised:2013-08-20 Online:2013-10-28 Published:2014-04-02

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Abstract:

Researches on copper removal from high-copper gold-loaded carbon using acidic solution with a kind of catalyst were demonstrated in this article.With the catalytic oxidation technique，the removal rates of copper and calcium reach 85%，while gold hardly stripped.Copper removal solution can be manifold cycled，and then copper can be effectively recovered by extraction.The desorption and smelting problems of high-copper gold-loaded carbon were efficiently solved.This process has the advantages of simpler flow，lower investment，better benefits，less pollution and higher metal utilization level.Consequently，this process has achieved cleaner production，environmental friendly，energy conservation and cyclic utilization.Its application value is promising.

Key words: high-copper gold-loaded carbon, catalytic oxidation, copper removal, recovery

CLC Number: 

  • TF83

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