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US 10,478,829 B2Granted
Collector compositions and methods of using same in mineral flotation processes
AssigneeCytec Industries Inc.
InventorsTarun Bhambhani, Jason Freeman, Devarayasamudram R. Nagaraj
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Abstract
Collector compositions C for mineral flotation, which include at least one of a hydroxamic acid A, and/or a salt S of a hydroxamic acid A solubilized in a water-soluble organic solvent L, and processes for using same for recovering sulfide and/or oxide minerals in mineral flotation processes are provided herewith.
Claims28
A mineral flotation collector composition “C” comprising
- a water-soluble organic solvent “L” selected from the group consisting of alkylene glycols, benzyl alcohol, polyhydric aliphatic alcohols having two or more hydroxyl groups per molecule, aliphatic sulfoxides, aliphatic sulfones, glycol ethers, aliphatic and aromatic amines, aliphatic and cycloaliphatic amides, cycloaliphatic esters, aliphatic hydroxyesters;
- and mixtures thereof;
- and
- at least one of a hydroxamic acid “A”, or a salt “S” of a hydroxamic acid A, dissolved in the solvent L,
- wherein a solvent is considered water-soluble if it forms single-phase mixtures with water for compositions ranging from a mass fraction of solvent L in the mixture with water of from 0.04 up to 1 in a temperature range of from 15° C. to 80° C.
2 more elements
A mineral flotation collector composition “C” comprising
- at least one hydroxamic acid “A”, and/or a salt “S” of a hydroxamic acid A, in a total mass fraction from 5% to 80%, and
- a water-soluble organic solvent “L” selected from the group consisting of 1,2-propanediol;
- 1,2-butanediol;
- 2,3-butanediol;
- glycerol;
- benzyl alcohol;
- propylene glycol n-propyl ether;
- phenoxyethanol;
- dimethylsulfoxide;
- hydroxyethyl pyrrolidone;
- and N-methyl pyrrolidone;
- and mixtures thereof in a mass fraction from 10% to 90%,
- wherein a solvent is considered water-soluble if it forms single-phase mixtures with water for compositions ranging from a mass fraction of solvent L in the mixture with water of from 0.04 up to 1 in a temperature range of from 15° C. to 80° C.
10 more elements
Dependencies are inferred from the claim text.