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separation of gold using cyanide processing for kaolin in eritrea

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what is the role of cyanide in mining miningfacts org

cyanide is a naturally occurring chemical that is found in low concentrations throughout nature including in fruits nuts plants and insects it has been used by the mining industry to separate gold and silver particles from ore for over years with proper management cyanide can be used safely and without harming the

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gold extraction - wikipedia

in john stewart macarthur working in collaboration with brothers dr robert and dr william forrest for the tennant company in glasgow scotland developed the macarthur-forrest process for the extraction of gold ores by suspending the crushed ore in a cyanide solution a separation of up to 96 percent pure gold