FIELD: mineral concentration by methods of flotation; applicable, mainly, in sludge flotation. SUBSTANCE: method includes supply of pulp to flotation machine, aeration of pulp in zone of main mixing, separation and withdrawal of separation products from foam layer. In sludge flotation, additionally supplied to zone of dispersion and main mixing are particles sizing at least 0.074 mm. EFFECT: higher quality and efficiency of sludge flotation. 1 dwg
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