FIELD: mining.
SUBSTANCE: proposed invention relates to concentration of minerals and can be used in flotation of copper-containing ores of non-ferrous metals, for example, copper (sulphide, sulphide-oxidised), copper-nickel, copper-zinc. Composition of collectors for flotation of non-ferrous metal ores consists of hydrazide of 2-ethylhexanoic acid with content of 5–50%, potassium alcoholates with the length of the C4 or C5 hydrocarbon radical with content of 15–30% of the total weight of the composition and potassium xanthate of general formula ROC(=S)SK, where R = C4H9; C5H11 is the rest.
EFFECT: increased degree of extraction of metals into corresponding concentrates, reduced consumption of foaming agents.
1 cl, 1 dwg, 2 tbl, 2 ex
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