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铅在铜冶炼企业里是副产品,因为方铅矿(PbS)常常与硫化铜(CuS)共生,被作为炼铜原料混人炼铜炉内,由于铅的熔沸点(熔点327.5℃、沸点1740℃)远比铜的熔沸点低(熔点1083.4℃、沸点2567℃),它先挥发成烟气,经电吸尘处理后成为烟道灰的主要成份,再经过分离而获得。不幸的是,高温条件下逸出的铅蒸气对工人有较
Lead is a by-product in the copper smelting business because galena (PbS) is often symbiosed with copper sulphide (CuS) and is mixed as a raw material for copper refining in a smelting furnace. The melting point of Pb is 327.5 ° C and the boiling point is 1740 ° C ) Is far lower than the melting point of copper (melting point 1083.4 ° C, boiling point 2567 ° C), it first volatilized into flue gas, after the electric dust treatment become the main component of flue ash, and then obtained by separation. Unfortunately, lead vapor is released at high temperatures to workers