FIELD: metallurgy.
SUBSTANCE: method involves dipping of wastes into acid electrolyte, connection to a positive pole of an electric current source and performance of electrolysis with conversion of cobalt to a solution and tungsten to slurry. Electrolysis is performed using direct current. As electrolyte there used is 5-15% of sulphuric acid solution containing 2% of a reducing agent. As a result, tungsten is obtained in slurry in the form of tungsten carbide powder.
EFFECT: excluding formation of tungstic acid in slurry.
1 dwg, 1 ex
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Authors
Dates
2013-08-10—Published
2011-10-24—Filed