我国含银矿物多伴生于有色金属矿中,其白银储量占总储量的绝大部分。银矿物一般嵌布粒度较细,与黄铁矿、脉石等矿物关系密切,其可浮性差,浮游速度慢。含银有色金属矿物的最佳选别条件(诸如,磨矿细度、药剂制度、浮选时间等)并非是选收银的最佳条件,从而导致银在锌精矿、硫精矿及尾矿中含量较高, Many silver-bearing minerals in our country are associated with non-ferrous metal ores. The silver reserves account for the vast majority of the total reserves. Silver mineral generally embedded fine grain size, and pyrite, gangue and other minerals are closely related, its poor floatability, slow floating velocity. The best sorting conditions for silver-containing non-ferrous minerals (such as grinding fineness, pharmaceutical system, flotation time, etc.) are not the optimal conditions for silver pick-up, resulting in silver concentrates in zinc concentrates, pyrite concentrates and tailings In a higher content,