FIELD: metallurgy.
SUBSTANCE: invention refers to regeneration of secondary metal-bearing raw material, including to electrochemical processing of metal wastes of tungsten-copper alloys containing 7-50% Cu. The above method involves anodic oxidation of wastes in 10-15% of ammonia solution under action of direct current. At that, the oxidation process is performed with addition to the solution of 0.1-0.5 M NaOH or 0.1-0.5 M KOH at current density of 1000-3000 A/m2.
EFFECT: improvement of metal extraction at minimum electric power consumption and effective separation of tungsten and copper.
2 dwg, 1 tbl, 2 ex
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Authors
Dates
2013-04-20—Published
2011-12-21—Filed