Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal
Patent
1984-03-23
1985-03-26
Doll, John
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ib metal
423DIG14, 252182, 75117, C01G 300
Patent
active
045072680
ABSTRACT:
Reagents formulated by admixture of selected hydroxy aryl ketoxime and hydroxyl aryl aldoxime extractants provide for efficient recovery of metal values, especially copper values, by solvent extraction processes. Specified kinetic and equilibrium conditions, which would require use of predetermined quantities of kinetic additives if ketoximes alone were employed or predetermined quantities of equilibrium modifiers if aldoximes were employed, are secured through formulation of reagents including both ketoxime and aldoxime extractants with less than the predetermined quantities of kinetic additive or equilibrium modifier. Reagents employed in methods of the invention may include from 0 to about 20 mole percent of a kinetic additive based on ketoxime content and also optionally a modifier of extraction and stripping equilibria in an amount providing a degree of modification of the aldoxime constituent of from about 0.75 to 1.0 and preferably from about 0.90 to 1.0.
REFERENCES:
patent: 4142952 (1979-03-01), Dalton
patent: 4173616 (1979-11-01), Koenders
Whewell, Degradation in Hydroyoxime Solvent Extraction Systems, Hydrometallurgy, (Jun. 1981), vol. 7, pp. 7-26.
Dissertation Abstracts International, vol. 41, No. 11, May 1981, p. 4233B.
Tumilty, Adv. in Extractive Metallurgy, 1977, Inst. of Mining and Metallurgy, (1977), pp. 123-131, (London).
CIM Special vol. 21, (Proc. 1, Sec. 77), Can. Inst. Mining and Met., (1979), pp. 17-23, 40-48, 185-186, 542-551.
Hanson, J. of Inorganic Nucl. Chem., (1976), vol. 38, pp. 2306-2307.
Kordosky Gary A.
MacKay Kenneth D.
Sierakoski Joseph M.
Sudderth R. Brantley
Doll John
Henkel Corporation
Stoll Robert L.
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