process for treating silica non-sulfuric ores with a collector composition, collector composition and pulp

摘要

the present invention relates to a process for treating siliceous non-sulfidic ores with a collector composition comprising a phosphate compound of formula ii wherein r is a saturated or unsaturated, linear or branched hydrocarbon group containing 1 to 24 carbon atoms , a is an alkylene oxide unit; y is h, na, k or an ammonium or alkylated ammonium, n is 1 to 3, p is 0 to 25, x is chosen from the same groups as r-ap- or y, to a collector composition that contains the phosphate compound of formula i as a primary collector in combination with a secondary collector and a pulp composition containing the phosphate compound of formula i.