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我国某锡矿产出的高铅粗锡,一般含铅达10～15%;经结晶放液除铅后,得到大量的铅锡合金,其成分为:65～67%Sn,32～34%Pb,以及少量铜、铁、砷、锑、铋等杂质,是一种制造焊锡的良好原料。为了生产出更多的金属锡,并给合回收有价金属,必须考虑将这种铅锡合金进行分离,以得到金属铅和锡。
The lead content of crude lead from a tin mine in our country is generally 10-15%. After the lead removal by crystallization, a large amount of lead-tin alloy is obtained with the composition of 65-67% Sn and 32-34% Pb , As well as a small amount of copper, iron, arsenic, antimony, bismuth and other impurities, is a good source of solder manufacturing. In order to produce more metallic tin, and to combine the recovery of valuable metals, it has to be considered to separate this pewter to obtain metallic lead and tin.