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Gold Science and Technology ›› 2013, Vol. 21 ›› Issue (5): 64-66.

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Experimental Study on the Technique of Extracting Gold from Carbonaceous Gold Ore

XUE Guang1，YU Yongjiang2，WU Guofu2   

  1. 1.No.7 Gold Geological Party of CAPF，Yantai   830057，Shandong，China；
    2.Design and Research Institute, Yantai Xinhai Mining Group，Yantai   265500，Shandong，China
  • Received:2013-06-14 Revised:2013-08-26 Online:2013-10-28 Published:2014-04-02

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Abstract:

One technique of extracting gold from carbonaceous gold ore has been intended，which pretreated ore samples using the ammonia-kerosene mixed system，and made soluble copper become to be copper ammonia complex.It enables the carbon in ore samples adsorbed kerosene and passivated，and eliminated the gold adsorption in carbon’s cyanide leaching process.In the presence of leaching aid （H2O2） and using CaO and NaOH as the pH value regulator respectively，the cyanide leaching rate of gold has reached 96.01％ and 97.79％.There are good economic and social benefits.

Key words: gold deposit, preg robbing of carbon, leaching gold of ammonia-cyanide method, carbonaceous gold ore, gold extraction process

CLC Number: 

  • TF831

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