Patent ID: 8936159
Filing Date: 2015-01-20
Classification: B03D,C08G

Abstract:
1. A method for froth flotation of a mineral-containing ore, the method comprising contacting the ore with: a) a product obtainable by the condensation, in one or several steps, of: where R 1 is a hydrocarbyl group having 7-24 carbon atoms, which may be branched or linear, saturated or unsaturated, AO is an alkyleneoxy group having 2-4 carbon atoms, n is a number between 0 and 20, and Y is O, C(═O)NH or NZ, where Z is a group R 2 , where R 2 is a C1-C4 alkyl group, or the benzyl group, provided that when Y is NZ or C(═O)NH, then n is ≧1; where D is —OH, —Cl, or —OR 4 , where R 4 is a C1-C4 alkyl group; R3 is an alkylene radical of formula —(CH 2 ) z —, in which z is an integer from 0 to 10, and in which the alkylene radical may be substituted by 1 or 2 —OH groups; the group —CH═CH—, a cycloalkylene, a cycloalkenylene, or an arylene group; and where each x independently is a number between 1 and 5 and Σx on average is a number between 2 and 10, AO is an alkyleneoxy group having 2-4 carbon atoms, R 5 is a C1-C3 alkyl group or a group [AO] x where AO and x have the same meaning as above; followed by reaction with an alkylating agent R 6 X, where R 6 is a hydrocarbyl group and X − is an anion derived from the alkylating agent R 6 X; or b) a product obtainable by the condensation of: