Use of alkoxylated amines as collector agents for ore beneficiation

A method of beneficiating an ore, comprising contacting at least one ore with at least one compound represented by formula (1):

• wherein:
• R2 is selected from the group consisting of
• a direct bond,
• a C1-C20, linear or branched, saturated or unsaturated hydrocarbon chain optionally substituted by one or more —OH group(s), a substituted alkylene radical wherein the alkylene radical is substituted by 1 or 2 —OH groups, an alkenylene radical having from 1-20 carbon atoms, a substituted alkenylene radical, wherein the alkenylene radical is substituted by 1 or 2 methyl and/or methylene groups,
• a cycloalkylene group,
• a cycloalkenylene group, and
• an arylene group;
• R4 is a hydrocarbyl group containing 8-24 carbon atoms or a group represented by the formula R6—O-(A′O)w-T-,
• wherein:
• R6 is a hydrocarbyl group containing 8-24 carbon atoms,
• w is an integer ranging from 0 to 20,
• A′O is an alkyleneoxy group containing 2-4 carbon atoms, and
• T is alkylene group containing 1-6 carbon atoms;
• R5 is a hydrocarbyl group or a benzyl group;
• X is a leaving group;
• AO is an alkyleneoxy group containing 2-4 carbon atoms;
• n is an integer of from 1 to 20;
• t is 0 or 1;
• y is 0 or 1;
• p ranges from 1 to 15;
• G is a group represented by formula (III):
• wherein:
• B is an alkyl group containing 1-4 carbon atoms or a benzyl group,
• s is 1, 2 or 3,
• R5, X, and t are as defined above, and
• wherein the group —(CH2)s— is a spacer between the two nitrogen atoms to which it is linked.

A flotation pulp, comprising water, ground ore containing impurities, and at least compound represented by formula (1):

• wherein:
• R2 is selected from the group consisting of
• a direct bond,
• a C1-C20, linear or branched, saturated or unsaturated hydrocarbon chain optionally substituted by one or more —OH group(s), a substituted alkylene radical wherein the alkylene radical is substituted by 1 or 2 —OH groups, an alkenylene radical having from 1-20 carbon atoms, a substituted alkenylene radical, wherein the alkenylene radical is substituted by 1 or 2 methyl and/or methylene groups,
• a cycloalkylene group,
• a cycloalkenylene group, and
• an arylene group;
• R4 is a hydrocarbyl group containing 8-24 carbon atoms or a group represented by the formula R6—O-(A′O)w-T-,
• wherein:
• R6 is a hydrocarbyl group containing 8-24 carbon atoms,
• w is an integer ranging from 0 to 20,
• A′O is an alkyleneoxy group containing 2-4 carbon atoms, and
• T is alkylene group containing 1-6 carbon atoms;
• R5 is a hydrocarbyl group or a benzyl group;
• X is a leaving group;
• AO is an alkyleneoxy group containing 2-4 carbon atoms;
• n is an integer of from 1 to 20;
• t is 0 or 1;
• y is 0 or 1;
• p ranges from 1 to 15;
• G is a group represented by formula (III):
• wherein:
• B is an alkyl group containing 1-4 carbon atoms or a benzyl group,
• s is 1, 2 or 3,
• R5, X, and t are as defined above, and
• wherein the group —(CH2)s— is a spacer between the two nitrogen atoms to which it is linked.

Tailings comprising floated impurities and at least one compound represented by formula (1):

• wherein:
• R2 is selected from the group consisting of
• a direct bond,
• a C1-C20, linear or branched, saturated or unsaturated hydrocarbon chain optionally substituted by one or more —OH group(s), a substituted alkylene radical wherein the alkylene radical is substituted by 1 or 2 —OH groups, an alkenylene radical having from 1-20 carbon atoms, a substituted alkenylene radical, wherein the alkenylene radical is substituted by 1 or 2 methyl and/or methylene groups,
• a cycloalkylene group,
• a cycloalkenylene group, and
• an arylene group;
• R4 is a hydrocarbyl group containing 8-24 carbon atoms or a group represented by the formula R6—O-(A′O)w-T-,
• wherein:
• R6 is a hydrocarbyl group containing 8-24 carbon atoms,
• w is an integer ranging from 0 to 20,
• A′O is an alkyleneoxy group containing 2-4 carbon atoms, and
• T is alkylene group containing 1-6 carbon atoms;
• R5 is a hydrocarbyl group or a benzyl group;
• X is a leaving group;
• AO is an alkyleneoxy group containing 2-4 carbon atoms;
• n is an integer of from 1 to 20;
• t is 0 or 1;
• y is 0 or 1;
• p ranges from 1 to 15;
• G is a group represented by formula (III):
• wherein:
• B is an alkyl group containing 1-4 carbon atoms or a benzyl group,
• s is 1, 2 or 3,
• R5, X, and t are as defined above, and
• wherein the group —(CH2)s— is a spacer between the two nitrogen atoms to which it is linked.

Polymer chosen from among adipic acid with ethoxylated C8-C16 and C18 unsaturated amine (or coco amine), chloromethane quaternized, polymers of adipic acid with ethoxylated C18 unsaturated amine (oleyl amine), chloromethane quaternized, polymers of maleic anhydride with ethoxylated C16-C18 and C18 unsaturated amine (or tallow amine or palm oil alkyl amine), chloromethane quaternized, polymers of maleic anhydride with ethoxylated C8-C16 and C18 unsaturated amine (or coco amine), chloromethane quaternized, polymers of maleic anhydride with ethoxylated C18 unsaturated amine (oleyl amine), chloromethane quaternized, polymers of sebacic acid with ethoxylated C16-C18 and C18 unsaturated amine (or tallow amine or palm oil alkyl amine), chloromethane quaternized, polymers of sebacic acid with ethoxylated C8-C16 and C18 unsaturated amine (or coco amine), chloromethane quaternized, polymers of sebacic acid with ethoxylated C18 unsaturated amine (oleyl amine), chloromethane quaternized, polymers of glutaric acid with ethoxylated C16-C18 and C18 unsaturated amine (or tallow amine or palm oil alkyl amine), chloromethane quaternized, polymers of glutaric acid with ethoxylated C8-C16 and C18 unsaturated amine (or coco amine), chloromethane quaternized, polymers of glutaric acid with ethoxylated C18 unsaturated amine (oleyl amine), chloromethane quaternized, and also the corresponding polymers, dimethyl or diethyl sulfate quaternized.