近年来,世界矿山年产银约1.05万吨,(80—85%是产自铜、铜-铜及铅-锌等有色金属矿石中)。但其消费每年达1.3—1.5万吨。当前,世界各国对银的综合回收进行了大量的研究,并取得了可喜的成果。仅一些欧洲国家,从1676年起就从含银废料中回收白银达三千多吨,占原生矿石银产量的1/3强。银的综合回收,归纳起来不外以下五个方面: In recent years, the annual output of silver in the world mines is about 10,500 tons, (80-85% of which is from non-ferrous ores such as copper, copper-copper and lead-zinc). However, its annual consumption of 1.3-1.5 million tons. At present, various countries in the world have done a great deal of research on the comprehensive recovery of silver and have achieved gratifying results. In some European countries, only some 3,000 tons of silver have been recovered from silver-based scrap since 1676, accounting for about one-third of the silver output of primary ores. Comprehensive recovery of silver, but summed up the following five aspects: