process for treating carbonate non-sulphidic ores with a collecting composition, collecting composition for use in process and pulp

摘要

the present invention relates to a process for treating carbonate non-sulphidic ores with a collecting composition comprising a phosphate compound of formula ii wherein r is a linear or branched, saturated or unsaturated hydrocarbon group containing from 1 to 24 atoms of carbon, 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, or when n is 2 or 3, the ox and an oy can be a single bond -o- to yield a cyclic phosphate, for a collecting composition containing the phosphate compound of formula i as a primary collector in combination with a secondary collector and for a pulp composition containing the compound phosphate of formula i.