Solvent extraction

Details Solvent extraction Solvent extraction

C - Chemistry, Metallurgy

22

B

53/291, 252/30

C22B 3/00 (2006.01) C01G 3/00 (2006.01) C22B 3/26 (2006.01) C22B 3/30 (2006.01) C22B 15/00 (2006.01)

Patent

CA 1185406

ABSTRACT OF THE DISCLOSURE Reagents formulated by admixture of selected hydroxy aryl ketoxime and hydroxy aryl aldoxime extractants provide for efficient recovery of metal values, especially copper values, by solvent extraction processes. Reagents 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 0.66 to 1.0 and preferably from about 0.75 to 1.0 and preferably from about 0.75 to 1Ø Preferred reagents incorporate an extraction and stripping modifier providing a degree of modification of from about 0.9 to 1Ø

414938

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