在最近几年中,金和银对采矿工业的吸引力已变得更大了,主要是由于金和银的价格特别高的缘故,当然部分也是因为金属的价格不太鼓舞人心。当前已很难找到非常适合于直接重选和氰化的新矿体,新发现的许多贵金属矿石都是硫化物矿石,然而,这种矿石往往对金属的回收存在着巨大的阻力。 In recent years, gold and silver have become even more attractive to the mining industry, mainly due to the particularly high price of gold and silver and, of course, partly because the price of metals is less encouraging. At present, it is very hard to find new ore bodies that are very suitable for direct re-selection and cyanidation. Many of the newly discovered precious metal ores are sulfide ores. However, such ores often have great resistance to metal recovery.