FIELD: metallurgy.
SUBSTANCE: method consists of dry ore reduction with usage of impact centrifugal crusher till fineness 60-100% class minus 1.0-4.0 mm, leaching of crushed ore by sulfuric acid of concentration 23-40 g/l at content of solid phase 10-70% during 5-120 min, dehydration, washing, neutralisation and crushing leaching agglomerated cake till fineness 60-95% class minus 0.074 mm, flotation of copper minerals at value pH 8.0-11.0.
EFFECT: flotation effectiveness increase.
7 cl, 2 ex
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