FIELD: metallurgy.
SUBSTANCE: processing method of slurries of galvanic productions involves leaching of heavy nonferrous metals by means of a sulphuric acid solution with further separation of a solid phase from the leaching solution by clarification and filtration, selective sorption of ions of heavy non-ferrous metals so that cathode deposits of zinc, copper and nickel are obtained from strippants. Before the solid phase is separated, to the leaching solution there added is flocculent - copolymer of vinyl ester of diethanol- or monoethanol amine with acrylate or methacrylate of sodium or potassium.
EFFECT: increasing settlement and filtration speed, and reducing the content of suspended substances in the leaching solution.
3 tbl, 1 ex
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Authors
Dates
2014-01-20—Published
2012-10-01—Filed