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Gold Science and Technology ›› 2013, Vol. 21 ›› Issue (5): 136-139.

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Research on the Copper Reactions of Copper-bearing Gold Ore in the Dump Leaching Process

LAN Bibo，LI Tingli，CHEN Shuping，WANG Jun’e，WU Zengling，WANG Chun，FAN Jingbiao， ZHANG Huanran，ZHANG Peng   

  1. State Key Laboratory of Comprehensive Uitlization of Low Grade Refratory Gold Ores，Zijin Mining Group Co.，Shanghang   364200，Fujian，China
  • Received:2013-06-22 Revised:2013-08-23 Online:2013-10-28 Published:2014-04-02

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Abstract:

Zijinshan gold mine is the largest gold mine in China，and belongs to the low-grade and oxide gold mine.As the mining elevation reduction，the content of copper in the gold ore is increasing constantly，and resulting in much difficulty in dump leaching，carbon absorbing，desorption and electro winning of gold loaded carbon etc.We had deeply investigated the process of Zijinshan gold mine and analyzed the process parameter and the reactions of copper on the dump leaching process.To deduced the effects of copper on gold leaching and adsorption and the amount of sodium cyanide，some suggestions had been given on the process parameter optimization of which optimizing the process parameters based on the actual situation，decreased the concentration of free cyanide in leaching solution as much as possible and the copper concentration of its dump leaching-carbon adsorption system and reducing the leaching of copper.It is of important guiding significance for the gold dump leaching and carbon adsorption production of Zijinshan gold mine.

Key words: copper-bearing gold ore, dump leaching, concentration of free cyanide, Cuprous Cyanide

CLC Number: 

  • TF831

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