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铜电解阳极泥脱铜后除含金、银、硒、碲等主要贵重组分以外,还含有一些不太贵重的组分:铅、砷、锑、硫。它们含量的总和占45～50%,这在很大程度上使主要金属的提取变得困难,在现有的火法处理阳极泥的过程中,30～35%含量的铅和锑分布在许多工序的炉渣和烟尘中,没有提炼成为最终产品。从原料综合利用的必要性来考虑,可以从铜阳极泥中优先回收商品铅和锑,同时将稀贵金属的品位提高30～35%。此外,阳极泥中含有害元素还将恶化劳动条件。
Copper electrolytic anode mud in addition to gold, silver, selenium, tellurium and other major valuable components, but also contains some less expensive components: lead, arsenic, antimony, sulfur. The sum of their contents accounts for 45 to 50%, which makes the extraction of the major metals difficult to a great extent. In the current fire process for anode slime, the content of lead and antimony is 30-35% Process slag and soot, not refined into the final product. Taking into account the necessity of comprehensive utilization of raw materials, it is possible to give priority to the recovery of commercial lead and antimony from copper anode slime while increasing the grade of precious metals by 30 to 35%. In addition, the anode mud containing harmful elements will also deteriorate working conditions.