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RECOVERING OF GOLD AND SILVER FROM AN AQUEOUS SOLUTION CONTAINING CYANIC COMPOUNDS OF GOLD AND SILVER
RECOVERING OF GOLD AND SILVER FROM AN AQUEOUS SOLUTION CONTAINING CYANIC COMPOUNDS OF GOLD AND SILVER
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机译:从含有金和银的氰化物的水溶液中回收金和银
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摘要
A method of recovering gold and silver efficiently and almost completely from an aqueous solution containing cyanic compounds of gold and silver and which comprises adjusting the pH of the aqueous solution containing cyanic compounds of gold and silver to 6.0 or less, preferably to pH 3.0-5.0, by adding mineral acid, such as sulfuric acid or hydrochloric acid, preferably together with a small amount of active carbon, and subsequently passing the aqueous solution through an active carbon bed, preferably pretreated with mineral acid.
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