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Recovery of valuable Metals of Anode Slimes from the Secondary Copper Industry

机译：从二次铜业中回收阳极泥中的贵重金属

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摘要

The anodes from secondary copper production have elevated contents of elements such as lead, nickel, tin, zinc, antimony and precious metals. These elements form complex compounds, which are not soluble in the refining electrolysis. The composition of the anode slime from the electrolysis also fluctuates considerably, due to the heterogeneity of the secondary raw materials fed to the various steps of process. Anode slimes have to be treated by hydrometallurgical leaching operations before the precious metal arc extracted. The residue after the gold and silver recovery process should have only a low content of the precious metals itself but also of the valuable base metals copper, nickel and tin. In the present work different leaching steps with leaching agents available from the industrial process were investigated. The objective was to recover copper and other valuable elements like nickel, silver and tin and to determine the co-dissolution of arsenic, antimony, selenium, tellurium and bismuth, which might cause a problem.
机译：二次铜生产产生的阳极中铅，镍，锡，锌，锑和贵金属等元素的含量较高。这些元素形成复杂的化合物，这些化合物不溶于精制电解。由于进料到工艺的各个步骤的二次原料的不均一性，来自电解的阳极泥的组成也有很大的波动。在提取贵金属之前，必须通过湿法冶金浸出处理阳极泥。金和银回收过程后的残留物中，贵金属本身的含量应低，而贵重贱金属铜，镍和锡的含量也应低。在本工作中，研究了使用可从工业过程中获得的浸出剂的不同浸出步骤。目的是回收铜和其他有价值的元素，如镍，银和锡，并确定可能引起问题的砷，锑，硒，碲和铋的共溶解度。

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