Preg-Robbing Gold Ores

Abstract:

In the case of certain ores, gold recovery by cyanidation is limited by the presence of naturally occurring carbonaceous material, which adsorbs gold from alkaline cyanide solution unless steps are taken to prevent this adsorption reaction from occurring. Such ores are most often referred to as preg-robbing ores. Discussion of preg-robbing gold ores includes characterization of carbonaceous material, treatment of carbonaceous ore, noncarbonaceous preg-robbing ores, plant practice, and practical ore characterization. Significant advances in the treatment of preg-robbing ores include the thiosulfate resin-in-leach process developed by Barrick, which is now in operation.

Año de publicación:

2016

Keywords:

• Adsorption of gold cyanide
• Oxidative treatment
• Characterization of preg-robbing gold ores
• Carbonaceous matter
• Chlorination process
• Defect structure
• Thiosulfate process
• Processes for the treatment of preg-robbing gold ores
• Graphitic carbon

Fuente:

scopus

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