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通常在弱的氰化物溶液中对金银矿石进行浸出 ,以回收其中的贵金属。但是 ,对于难选矿石 ,需要用浮选预处理 ,获得贵金属浮选精矿。浮选还是从硫化矿浮选回路中附带回收贵金属的常用工艺。本文对贵金属选矿厂的选矿实践和将来的发展趋势进行了评述。
Gold and silver ores are usually leached in weak cyanide solutions to recover precious metals therein. However, for refractory ore, flotation pretreatment is required to obtain precious metal flotation concentrate. Flotation or sulfide ore flotation loop with the recovery of precious metals commonly used process. This article reviews the beneficiation practice and future development trend of precious metal concentrator.