PERFECT FLOATING PROCESS WITH FOAM TO BENEFIT A GOLD, SILVER OR PLATINUM METAL ORE

摘要

Collector compositions for use in froth flotation processes for the beneficiation of gold, silver and platinum group values from base metal ores are disclosed. The collector compositions comprises at least one monothiophosphate compound selected from compounds of the formula: IMAGE wherein each R is a C2-C8 alkyl or a IMAGE radical, R1 and R2 are, individually, hydrogen or C1-C4 alkyl radicals, n is 0 or 1 and X is a cation. The use of the monothiophosphate collectors provides excellent selective recovery of gold, silver and platinum group metal values in froth flotation processes conducted under alkaline conditions.