某冶炼厂的铜阳极泥经脱硒、脱铜和分银、分金后的渣富含金、银、锡、铅等多种金属,按其性质属铅阳极泥型。工业上对于该类物料的处理,一般是直接进入贵铅炉内进行还原熔炼,但该法金、银的损失较大。并且在还原熔炼时铅与锡难以分离。试验证明,采用“硝酸浸出-硫脲浸出-还原熔炼” A smelter copper anode slime after selenium, copper and silver points, gold after the gold-rich residue, silver, tin, lead and other metals, according to their nature is lead anode mud type. Industry for the treatment of such materials, usually directly into your lead furnace for reduction smelting, but the law gold, silver loss greater. And in the smelting reduction of lead and tin is difficult to separate. Test proved that the use of “nitric acid leaching - Thiourea leaching - reduction smelting”