Relation of Mineralogy to Treatment Methods for Carbonaceous Gold Ores.
The Matall Soc 1987 :3-12
This paper discusses the presence of organic materials in gold ores, which interferes with gold extraction by cyanidation. The carbon contained in the ore has been shown to adsorb gold cyanide complex from solution. Removal of the carbon content by roasting or chemical oxidation prior to cyanidation results in gold extractions of 85 to 95%. This paper discusses how the mineralogy of the carbonaceous gold ores affects gold recovery by cyanidation. It also discusses the advantages and disadvantages of roasting and chemical treatment to render the ore amenable to cyanidation.
The Matall. Soc., 1987, PP. 3-12