FIELD: dressing of minerals.
SUBSTANCE: invention relates to dressing of minerals, in particular, to flotation methods of dressing, and can be used in processing of apatite-containing ores. Use of oxyethylated derivatives of cashew nutshell liquid with degree of oxyethylation from 1 to 100 as reagent-foaming agent for flotation beneficiation of apatite-containing ores. Oxyethylated cashew nutshell liquid derivatives used are cardanol, natural cashew nutshell liquid, decarboxylated cashew nutshell liquid, anacardic acid, methyl carbodol, residol. Preferably, the degree of oxyethylation ranges from 30 to 50.
EFFECT: high efficiency of flotation processes of apatite-containing ores with substituted phenols.
8 cl, 1 dwg, 1 tbl
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