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Gold Science and Technology ›› 2013, Vol. 21 ›› Issue (6): 89-93.

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Test Study on Cyanide Recovery Rate Improving on the Arsenic Containing Carbon Refractory Oxidized Gold Ore Separation

ZHANG Zhilei1,LI Yong2,LIU Zhixin1   

  1. 1.Jinchiling Gold Mine,Shandong Zhaojin Mining Industry Co.,Ltd.,Zhaoyuan   265400,Shandong,China;
    2.Qinghai Institute of Salt Lake,Chinese Academy of Sciences,Xi’ning  810000,Qinghai,China
  • Received:2013-09-06 Revised:2013-11-03 Online:2013-12-28 Published:2014-05-09

Abstract:

For normal mineral separating method on the refractory oxidized gold ore which contained As and C in Guangxi Province,the recovery rate was low by only 83.00%,the gold concentrate cyaniding recovery rate was only 50.3%,and the ore comprehensive recovery rate was only 41.5%.In order to improve the recovery rate of the mineral ore,comprehensive study by using all-sliming cyanidation,roasting oxidation pretreatment,bacterial oxidation pretreatment,pressure oxidation pretreatment and conventional flotation concentrate of cyanide and other processing methods were conducted.The bacterial oxidation pretreatment process has been determined finally,and ultimately the selection process bacterial pre oxidation of the refractory ore.The metallurgical recovery rate can increase to 95.00%.

Key words: carbon oxide ore containing arsenic, metallurgical recovery rate, experimental investigations

CLC Number: 

  • TF831

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