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J4 ›› 2002, Vol. 10 ›› Issue (2): 29-34.

• article • Previous Articles     Next Articles

HYPOCHLOROUS LEACHINGOF REFRACTORY CARBONACEOUS MICRO2SIZE GOLD ORES

FANG Zhaoheng   

  1. Instit ute of Chemical Metallurgy , Chinese Academy of Sciences , Beijing   100080 , China
  • Received:2001-07-17 Revised:2001-08-30 Online:2002-04-28 Published:2011-12-13

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Abstract:

A process Ieaching gold from are fractory carbonaceous gold ores with hypochlorous solution was proposed. The mineral characters of carbonaceous gold ores was briefly summarized.Cyanidation with carbon in leach (CLL) was likewise ineffective in achieving satisfactory gold extraction from these ores in the absence of any oxidative pret reatment . In the conditions under the study , over 85 % of gold was leached f rom the carbonaceous ores by hypochlorous leaching. The main factors that influenced the process rate and ext racted gold yield were tested and discussed.

Key words: refractory carbonaceous gold ore, hypochlorous leaching

CLC Number: 

  • TF803. 12 + 2

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