Abstract
The composition of the surface of natural diamonds in interaction with kimberlite minerals and the aqueous phase in the depositand enriched ore is studied. The sequence and conditions for the formation of minerals on the surface of crystals under conditionsof processing of kimberlites have been determined. Confirmed the mechanism of hydrophilization of diamonds comprising crystallizationof hydroxides and oxides of iron as a mandatory initial stage. A method of destruction or subsequent dissolution of mineralsaggregates by the impact of electrolysis products of aqueous systems has been proposed, which allows to restore the hydrophobicityof diamonds. The use of electrochemically treated water in the froth separation cycle with high diamond recovery made it possibleto increase their recovery in the factory’s concentrate by 8.8%.
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