TH25544B - Mixtures and processes for metal extraction - Google Patents

Abstract

DC60 contains a solvent extraction compound consisting of orthohydroxyalyldoxime. Or one or more orthohydroxyl aryl ketoxime and esters replaced by one or more hydroxyl groups, and which should Organic solvents that are not compatible with orthohydroxy water Ariel l Doxime Or orthohydroxy Cialic ketoxymes generally have the formula (1), (chemical formula) formula (1) where R1 is the hydrogen or hydrocarbon group and R2 is the ortho-hydroxylactic group; And the esters which are replaced by hydroxyl groups have the formula (2), (chemical formula) formula (2), where R7 or R8 is the hydrocarb group replaced. With at least one hydroxyl group, and the other, a hydrocarbon group that may be chosen to be replaced with orthohyde. The recommended dosage for this is 5- (C9 to C14 alkyl) -2-hydroxyl ldoxime. And the orthohydroxyalyl ketoxime should be 5- (C9 to C14 alkyl) -2-hydroxyl acetophenone oxym ester. Which was Replaced by the preferred hydroxyl group, a branched-chain alkyl ester containing carbon from 5 to 51 atoms, with the hydroxyl group on R8 a process for Metal extraction Both from the acidic solution and the acidic ammonia as well There is a solvent extraction compound consisting of orthohydroxyalyldoxime. Or one or more types of orthohydroxyl ketoxime and esters replaced by one or more hydroxyl groups, and which should Organic solvents that are not compatible with orthohydroxy water Aerile Loxime Or orthohydroxy Cialic ketoxymes generally have the formula (I), (chemical formula) where R1 is the hydrogen or hydrocarbyl group and R2 is the ortho-hydroxylactic acid group; And the esters that are replaced by hydroxyl groups have the formula (2), (chemical formula) where R7 or R8, one is the hydrocarb group that is replaced. With at least one hydroxyl group, and the other, a hydrocarbon group that may be chosen to be replaced with orthohyde. The recommended dosage for this is 5- (C9 to C14 alkyl) -2-hydroxybenzaldoxime. And the orthohydroxyalyl ketoxime should be 5- (C9 to C14 alkyl) -2-hydroxyl acetophenone oxym ester. Correct Replaced by the preferred hydroxyl group, a branched-chain alkyl ester containing carbon from 5 to 51 atoms, with the hydroxyl group on R8 a process for Metal extraction Both from the acidic solution and the acidic ammonia as well

Claims (18)

1. A solvent extraction mixture containing one or more orthohydroxyaryl alkoximes or orthohydroxyaryl ketoximes and one or more hydroxyl-substituted esters chosen from a compound of the type represented by the formula: (chemical formula) Formula (2), where one R7 or R8 is a hydrocarbil substituted by at least one hydroxyl group and the other is a hydrocarbil that may be chosen to be substituted. 2. The mixtures under claim 1, in addition to this, contain organic solvents that are incompatible with water. 3. Any mixture according to the above claims in which an ortho-hydroxyaryl oxyme or ortho-hydroxyaryl ketoxime is chosen from the compounds of the type represented by formula (1), (chemical formula) formula (1) where R1 is the hydrogen or hydrocarbil group that may be chosen to be substituted, R2 is the ortho-hydroxyaryl group that may be chosen to be substituted, and a salt of such group. 4. Any mixture according to claims 1 through 3, where the orthohydroxyaryl ketoxime is 5-(C9 to C14 alkyl)-2-hydroxyacetophenone oxime, the preferred formulation is 5-nonyl-2-hydroxyacetophenone oxime. 5. Any mixture under claims 1 through 4, where the orthohydroxyaryl alkoxime is 5-(C9 to C14 alkyl)-2-hydroxybenzalcoxime, the appropriate formulation is 5-nonyl-2-hydroxybenzalcoxime. 6. A mixture pursuant to any one of the claims 1 through 5, where an ester replaced by a hydroxyl group comprises a highly branched hydroxyl-ester containing 9 to 25 carbon atoms. 7. A mixture according to any of the claims 1 through 6, where the hydroxyl functionality of the ester is replaced by a hydroxyl group on R8, and where R8 is a branched aliphatic group. 8. A mixture of any one of the above-mentioned claims, where the ester is replaced by a hydroxyl group, namely 2,2,4-trimethyl-1,3-penteldiol mono-isobutyrate or 2,2,4-trimethyl-1,3-pentanediol monobenzoate. 9. A procedure for the extraction of metals from solutions in which an acid solution containing the dissolved metal or an aqueous ammonia solution containing the dissolved metal is exposed to a solvent extraction mixture consisting of an aqueous organic solvent and an aqueous solvent extractor, in which at least a portion of the metal is extracted into the organic solvent, with the characteristic that the solvent extraction mixture consists of an orthohydroxyaryl aldoxime or orthohydroxyaryl ketoxime and an ester replaced by one or more hydroxyl groups chosen from a compound of the type represented by the chemical formula (2), where one R7 or R8 is a hydrocarbil group replaced by at least one hydroxyl group and the other is a hydrocarbil group that may be chosen to be replaced. 10. The process under claim 9 which contains a greater proportion of orthohydroxyaryl alkoximes compared to any orthohydroxyaryl ketoximes present in the solvent extraction mixture. 11. The process under claim 9 which contains a greater proportion of orthohydroxylaryl ketoximes compared to any orthohydroxyl ketoximes present in the solvent extraction mixture. 12. Any of the processes under claims 9 through 12, where the metal is copper, zinc, cobalt, or nickel, and copper should be used. 13. Any of the processes under claims 9 through 12 in which an orthohydroxyaryl oxyme or orthohydroxyaryl ketoxime is selected from a compound of the type represented by the formula (I), (chemical formula), where R1 is the hydrogen or hydrocarbil group that may be substituted, R2 is the ortho-hydroxyaryl group that may be substituted and its salt. 14. Any of the procedures under claims 9 through 13, by orthohydroxyaryl ketoxime, i.e., 5-(C9 through C14 alkyl)-2-hydroxyacetophenone oxyme, the appropriate one to use is 5-nonyl-2-hydroxyacetophenone oxyme. 15. Any of the procedures under claims 9 through 14 using orthohydroxyaryl aldoxem, i.e. 5-(C9 through C14 alkyl)-2-hydroxylbenzaldoxem, the appropriate one to use is 5-nonyl-2-hydroxylbenzaldoxem. 16. Any of the processes under claims 9 through 15, where an ester is replaced by a hydroxyl group, consists of a highly branched hydroxyl-ester containing 9 to 25 carbon atoms. 17. Any of the claims 9 through 16 are valid by the hydroxyafunctionality of the ester, which is replaced by a hydroxya group on R8, where R8 is a branched aliphatic group. 18. Any of the processes under claims 9 through 17, where the ester is replaced by a hydroxyl group, namely 2,2,4-trimethyl-1,3-pentandiol mono-isobutyrate or 2,2,4-trimethyl-1,3-pentandiol monobenzoate.