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J4 ›› 2005, Vol. 13 ›› Issue (05): 33-36.

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Recovery of gold from residues of hot-press acid leaching of Copper-bearing gold concentrate by ammoniacal cyanide process

LIN Honghan   

  1. Fujian Zijin Research Institute of Mining and Metallurgy, Fujian Zijin Mining Co., LTD., Fujian Shanghang 364200, China
  • Received:2005-03-21 Revised:2005-04-03 Online:2005-10-27 Published:2011-11-09

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Abstract:

The experimental reseach of gold leaching of hot-press acid leaching residues by ammmoniacal cyanide process and the effects of various operation condition on gold extraction have been investigated in this paper.The extraction of Au、Ag is 98.3%、82.7% respectively under conditions that granularity of concentration of mine slurry is 20%, the NaCN and NH4HCO3 is 8kg/t and 75kg/t respectively, and ammoniacal cyanide treatment time as long as 16h.

Key words: ammoniacal cyanide process, gold extraction, Copper-bearing gold concentrates, hot-press acid leaching residues

CLC Number: 

  • TF803.2


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