A hydrometallurgical procedure for the separation of copper soluble species from metallic copper of a copper converter flue dust was studied. The high content of metallic copper in the starting material made unique a procedure of such characteristics for the treatment of this secondary copper resource. The procedure consists of leaching and solvent extraction operations. Leaching was carried out under atmospheric conditions using sulphuric acid. Under various experimental conditions the metallic copper fraction remains unattacked. The solubilized copper was separated/recovered by solvent extraction using LIX 860 or MOC-55TD oximes in Iberfluid (diluent). The loaded organic solutions can be stripped using typical spent electrolyte solutions (e.g. 25 g dm-3 Cu and 180 g dm-3 H2SO4). Results obtained showed the feasibility of the operation in the treatment of a converter dust with a high content of metallic copper.
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机译：研究了一种湿法冶金程序，用于从铜转炉烟道粉尘的金属铜中分离出可溶性铜。起始材料中高含量的金属铜使这种特性的处理过程成为独特的处理该次要铜资源的方法。该过程包括浸出和溶剂萃取操作。在大气条件下使用硫酸进行浸出。在各种实验条件下，金属铜级分都不会受到攻击。使用LIB 860或MOC-55TD肟在Iberfluid（稀释剂）中进行溶剂萃取，分离/回收可溶的铜。可以使用典型的废电解质溶液（例如25 g dm-3 Cu和180 g dm-3 H2SO4）汽提负载的有机溶液。所获得的结果表明，该操作可用于处理金属铜含量高的转炉粉尘。
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