近年来,采矿业对开采金和银的兴趣越来越大,这主要是因为金和银的价格特别高,其次是因为贱金属的价格太低。寻找可直接进行重力选矿和氰化处理的矿床不是那么成功,所发现的许多贵金属矿都属硫化矿,从硫化矿中回收金属有许多困难。 In recent years, there has been increasing interest in the mining industry for gold and silver mining, mainly because of the particularly high price of gold and silver and secondarily because the price of base metals is too low. Finding deposits that can be directly gravity-beneficiated and cyanidated is less successful and many of the precious metal ores discovered are sulfide ores, recovering metals from sulfide ores with many difficulties.