Sulfonamido oximes, metal complexes thereof, and solutions...

Details Sulfonamido oximes, metal complexes thereof, and solutions... Sulfonamido oximes, metal complexes thereof, and solutions...

C - Chemistry, Metallurgy

01

G

53/375, 260/542.

C01G 9/00 (2006.01) C01G 3/00 (2006.01) C01G 51/00 (2006.01) C01G 53/00 (2006.01) C22B 3/34 (2006.01)

Patent

CA 1113494

ABSTRACT OF THE DISCLOSURE Certain sulfonamido oximes, metal complexes thereof and solutions of said compounds in essentially water-immiscible, liquid hydrocarbon solvents are dis- closed. The sulfonamido oximes have the general structural formula: Image wherein A, R1, R2 and R3 are as defined in the specification and claims hereof. Particular metal values are recovered from their aqueous solutions by using sulfonamido oximes dissolved in essentially water-immiscible liquid hydrocarbon solvents. Teh extraction process involves contacting the metal value containing cqueous solution with the solution of the sulfonamido oxime in essentially water-immiscible liquid hydrocarbon solvent and stripping the metal values from the loaded organic phase.

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