The lead smelting method has two kinds of fire and wet method, at present the world to the fire method, the wet method of lead refining is still in the experimental research stage. Thermal lead refining basically using sintering and roasting - blast furnace smelting process, accounting for 85-90% of the total output of lead; followed by the reaction smelting method, the equipment can be used for hearth furnaces, short kilns, electric furnaces or vortex furnaces; precipitation smelting is rarely used. Lead refining is mainly used in fire refining, followed by electrolytic refining