Alkaline sulfide gold leaching kinetics. (June 2016)

• Record Type: Journal Article
• Authors: Anderson, C.G.
• Is Part Of: Minerals engineering. Volume 92(2016)
• Page Start: 248
• Page End: 256
• Publication Date: 2016-06
• Subjects: Gold -- Leaching -- Kinetics -- REQCM -- Sulfide; Mines and mineral resources -- Periodicals; Ressources minérales -- Périodiques; Mines and mineral resources; Periodicals; Electronic journals; 622
• DOI: 10.1016/j.mineng.2016.01.009
• Languages: English
• ISSNs: 0892-6875

Abstract

Highlights: The thermodynamics behind alkaline sulfide gold leaching have been delineated. The electrokinetics of alkaline sulfide leaching of gold have been delineated. The use of an REQCM has been defined and described. A literature survey of the alkaline sulfide gold leaching system has been provided. Abstract: Recently, leaching of gold with cyanide has come under scrutiny for its possible detrimental effects to the environment. Also, in some gold bearing ores and concentrates, conventional cyanide leaching is not the best method for gold extraction. This is due to gold particle encapsulation, cyanicides or pregrobbing carbon such as found in refractory ores and concentrates. Hence, there is much interest in developing an alternative way to extract gold from ore. Possible benefits of leaching gold with something other than cyanide include easier processing of refractory ore bodies including: carbonaceous, cyanicides, and sulfides, cheaper reagent and operating costs and opening of mine properties in places where cyanide use has been limited by the law. Hence, this paper details the fundamentals and development of the Alkaline Sulfide Gold Leaching system.