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粗锡精炼过程中所得到的副产物焊锡(含锡约65％,铅约35％)中,除锡、铅外,还含有其他的伴生金属如铋、铟等。在处理焊锡回收锡和铅的同时,应使其他有价金属尽可能地得到利用。焊锡处理的方法,我国已成功地应用电解法进行工业生产,并正在进行真空蒸馏法的研究。焊锡电解分离铅的实质在于使焊锡中的铅形成PbCl_2阳极泥,其反应如下: [Pb]合金+SnCl_2(?)(PbCl_2)极泥+Sn(1)电解过程中沉积出来的阴极锡为针状结晶(俗称锡花),极易引起两极短路,必须经常用人工或机械方
The byproduct solders (about 65% tin, about 35% lead) obtained during the crude tin refining contain other associated metals such as bismuth and indium in addition to tin and lead. In dealing with the recovery of tin and lead solder at the same time, should make other valuable metals to be used as much as possible. Soldering process, China has successfully applied the electrolytic method for industrial production, and is undergoing vacuum distillation method. The essence of solder electrolytic separation of lead is that the lead in the solder forms PbCl 2 anode slime. The reaction is as follows: [Pb] alloy + SnCl_2 (?) (PbCl_2) very mud + Sn (1) Cathode tin deposited during electrolysis is needle Crystal-like (commonly known as tin flower), can easily cause bipolar short circuit, you must often use artificial or mechanical