首页>
外国专利>
GOLD AND SILVER FROM AN AQUEOUS SOLUTION CONTAINING CYANIC COMPOUNDS OF GOLD AND SILVER
GOLD AND SILVER FROM AN AQUEOUS SOLUTION CONTAINING CYANIC COMPOUNDS OF GOLD AND SILVER
展开▼
机译:含有金和银氰化物的水溶液中的金和银
展开▼
页面导航
摘要
著录项
相似文献
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.
展开▼