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  • ISSN 1005-2518 
  • Founded in 1988
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Research on Acid Hot-pressure Preoxidation-Cyanidate Process for Refractory Gold Ore

  • XU Xiaoyang ,
  • CAI Chuangkai ,
  • DING Wentao
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  • Xiamen Zijin Mining and Metallurgy Technology Co.,Ltd.,Xiamen    361101,Fujian,China

Received date: 2014-06-15

  Revised date: 2014-07-11

  Online published: 2014-12-24

Abstract

The samples used is a typical refractory gold ore,which containing 14.80×10-6 Au and 0.47% organic carbon,and over 95% gold is of sulfide-inclusion type,and traditional cyanidation leaching rate of gold is only 21.89%.With acid hot-pressure oxidation pretreatment,the influence of pulp density,time,temperature,oxygen partial pressure,rotational speed on cyanidation extraction rate of Au was researched.The results showed that sulfur oxidation rate was more than 98% and the leaching rate of gold was more than 97%.

Cite this article

XU Xiaoyang , CAI Chuangkai , DING Wentao . Research on Acid Hot-pressure Preoxidation-Cyanidate Process for Refractory Gold Ore[J]. Gold Science and Technology, 2014 , 22(4) : 135 -138 . DOI: 10.11872/j.issn.1005-2518.2014.04.135

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