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本文针对某厂所产成份复杂的焊锡阳极泥,采用氧化焙烧,使其中的锡转变为 SnO_2,砷转变为高价氧化物(不挥发),而后用稀盐酸液浸出铜、铋、砷,食盐水浸出银、铅。经较长时间的试生产试验,技术和经济效果均良好,可综合回收锡、银、铅、铋、铜等多种金属。
In this paper, for a solder paste with complicated composition, a method of oxidation roasting is adopted to convert tin into SnO 2 and arsenic into high-valent oxide (non-volatile), and then dilute hydrochloric acid solution to extract copper, bismuth, arsenic and salt water Leaching silver, lead. After a long period of trial production test, technical and economic effects are good, can be a comprehensive recovery of tin, silver, lead, bismuth, copper and other metals.