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Conference Proceedings

World Gold '91, Cairns Qld, April 1991

Conference Proceedings

World Gold '91, Cairns Qld, April 1991

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Novel Chemistry for the Removal of Gold and Silver from Carbon

High temperatures and pressures are required to obtain acceptable stripping rates. Higher chemically induced stripping rates could reduce the need for higher temperatures which lead to cyanide losses. The higher rates could lead to lower carbon inventories and higher gold production. This paper reports laboratory and continuous test unit data which strongly suggest that the preceding can be achieved. New stripping agents demonstrate efficient stripping under conditions of cyanide depletion such as after carbon acid washing. Stripping times for gold and silver can be reduced by at least half compared to caustic cyanide through the use of these novel substances.
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  • Published: 1990
  • PDF Size: 0.49 Mb.
  • Unique ID: P199102040

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