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Metal Mine ›› 2018, Vol. 47 ›› Issue (10): 193-196.

Previous Articles    

Research on the Cold,Silver Leaching Process of a Gold Concentrate Calcine in Fujian

Xu Zhifeng,Liang Kai,Li Mian,Li Alin,Cheng Lili,Wang Ruixiang   

  1. School of Metallurgical and Chemical Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China
  • Online:2018-10-15 Published:2018-11-09

Abstract: The main phase of the gold concentrate calcine in Fujian Province is hematite and quartz. The content of gold and silver is 31.27 g/t and 824 g/t, respectively. The copper was extracted by dilute sulfate leaching method. Then, the gold and silver were extracted by the self-made agent named Addicted-gold NO.1. The result showed that when the Addicted-gold NO.1 agent dosage of 5 g/L, pH value of 11, liquid-to-solid ratio of 5 mL/g, reaction temperature of 25 ℃, leaching time of 24 h, leaching rate of gold and silver were 92.76% and 85.02%, respectively. The leaching rate of gold was 3.73 percentage points higher than that by sodium cyanide method. Hence, the Addicted-gold NO.1 not only has excellent effect of the gold leaching rate, but also has weak impact on the environment. Therefore, the Addicted-gold NO.1 can be used in gold leaching process from gold concentrate calcine.

Key words: Calcine, Addicted-gold NO.1, Gold, Leaching