银的资源主要是有色多金属矿石、工业废料,但海洋中的泥浆也是不可忽视的资源。从多金属矿石中回收银的方法有重浮联合流程、浮选、堆浸和全泥氰化;从工业残渣中回收银的方法有火法富集、电解、溶解、浸出、浮选等。从海洋泥浆中回收银的方法尚处在研究阶段,但开发海洋扩大资源已成为必然的发展趋势。 Silver resources are mainly non-ferrous metal ores, industrial waste, but the mud in the sea is also a resource that can not be ignored. Methods for the recovery of silver from polymetallic ores include a combination of heavy flooding processes, flotation, heap leaching and full mud cyanidation; methods for the recovery of silver from industrial residues include pyrolysis, electrolysis, dissolution, leaching and flotation. The method of recovering silver from marine mud is still at the research stage, but it is an inevitable trend to develop the ocean to expand resources.