FIELD: metallurgy.
SUBSTANCE: procedure for processing mixed copper ore consists in ore crushing and crumbling. Further, crumbled ore is leached with solution of sulphuric acid of concentration 10-40 g/dm3 and mixed during 10-60 min at contents of solid phase 10-70 %. Upon leaching cake of ore leaching is dehydrated and flushed. Further, flush water is added to a liquid phase of ore leaching and solid suspensions are released from joined copper containing solution. Copper is extracted from copper containing solution and there is produced cathode copper. Flotation of copper minerals from leaching cake is performed at value of pH 2.0-6.0 and there is produced flotation concentrate.
EFFECT: raised extraction of copper into commodity products, reduced consumption of reagents for flotation, increased rate of flotation, and reduced expenditures for crumbling.
8 cl, 1 dwg, 2 ex
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