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Treatment of Refractory Gold Ores

  • J. C. Yannopoulos

Abstract

Problem ores that yield low (say less than 80%) gold recovery by cyanidation when “normally ground” are defined as refractory. The term, as well as the technical methods used to treat such ores, are relatively new. Rose and Newman’s very comprehensive book, The Metallurgy of Gold, does not even contain the term refractory in its latest, fourth edition (1937).1 Dorr and Bosqui’s Cyanidation and Concentration of Gold and Silver (2d edition, 1950) has a brief chapter (XIII) on “Cyanicides and Refractory Ores,” with only four pages devoted to refractory ores. Gold Metallurgy in South Africa, edited by R. J. Adamson and published by the Chamber of Mines of South Africa (1952), contains about six pages with meaningful contents on “Refractory Properties of the Ores and their Treatment.”

Keywords

Native Gold Gold Recovery Gold Extraction Pressure Oxidation Ferric Arsenate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Van Nostrand Reinhold 1991

Authors and Affiliations

  • J. C. Yannopoulos

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