铅及其合金是生产电缆的重要原料,主要用作电缆的护套材料。我国现在生产的电缆是50年代仿照苏联的标准,电缆的护套材料是由铅、锑、铜组成的铅基三元合金,约占电缆总重的60％。长期以来,人们只重视了电缆的生产,而对废旧电缆铅护套的回收及综合利用并未引起重视。过去,由回收部门收购的废旧 Lead and its alloys are important raw materials for the production of cable, mainly used for cable sheathing material. The cable now produced in our country was the standard of the Soviet Union in the 1950s. The sheath material of the cable is a lead-based ternary alloy composed of lead, antimony and copper, accounting for 60% of the total weight of the cable. For a long time, people have only paid attention to the production of cables, and the recovery and comprehensive utilization of the lead sheaths of scrapped cables have not drawn much attention. In the past, the waste acquired by the recycling department