Collector compositions for flotation of minerals

摘要

A collector composition, useful for the recovery of metal-containing sulfide minerals, sulfidized metal-containing oxide minerals, metals-containing oxide minerals and metals occuring in the metallic state from ores in a froth flotation process, comprises two collectors. One collector is an organic compound containing at least 4 carbon atoms and one or more monosulfide units, wherein the carbon atoms to which the sulfur atoms are bound are aliphatic or cycloaliphatic carbons. The other collector is preferably an omega-(hydrocarbylthio)alkylamine, S-(omega-aminoalkyl)-hydrocarbyl thioate, N-(hydrocarbyl)-alpha, omega-alkane-diamine, (omega-aminoalkyl)hydrocarbon amide, omega-(hydrocarbyloxy)alkylamine, omega-aminoalkyl hydrocarbonoate, omega-(hydrocarbylthio)-alkylamide or mixture thereof.