Compositions – Absorptive – or bindive – and chemically yieldive
Patent
1993-11-03
2000-09-05
Kim, John
Compositions
Absorptive, or bindive, and chemically yieldive
210634, 210688, 252364, 423 24, 423DIG14, 564265, C07C25132, C22B 1500, C02F 126
Patent
active
061138045
ABSTRACT:
A composition for use in extracting copper values from aqueous solutions of metal salts comprises one or more o-hydroxyaryloximes containing at least 5 aliphatic or alicyclic carbon atoms which are strong metal extractants which, in 0.2 molar solution in an aliphatic hydrocarbon solution when loaded with 50% of the theoretical uptake of copper, will be in equilibrium with a 0.1 molar solution of copper as copper perchlorate at a pH less than 1 and one or more branched chain aliphatic or aliphatic-aromatic esters containing 10 to 30 carbon atoms, wherein the ratio of the number of methyl carbon atoms to the number of non-methyl carbon atoms is higher 1:5 and the weight ratio of A to B being in the range of 10:1 to 1:3.
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patent: 4567498 (1986-01-01), Shanton
patent: 4582689 (1986-04-01), Kordosky
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Dalton Raymond Frederick
Leng John Lindley
Imperial Chemical Industries plc
Kim John
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