Catalytic metal recovery from non-polar organic solutions

Details Catalytic metal recovery from non-polar organic solutions Catalytic metal recovery from non-polar organic solutions

1988-08-12

1990-06-19

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

502 24, 502 30, 568492, C07C 4550, C07C 4578

Patent

active

049355503

ABSTRACT:
A method for recovering a transition metal, e.g., rhodium, from a non-polar organic solution containing non-polar organic solvent-soluble and polar solvent-insoluble coordination complex of the transition metal and a non-polar organic solvent-soluble and polar solvent-insoluble ligand, e.g., an organophosphorus ligand, by contacting the non-polar organic solution with a polar solution of an ionic organophosphine ligand, the transition metal then can be transferred back into a non-polar solution for reuse. In one embodiment rhodium is rendered amenable for back-extraction by treating the polar solution with a suitable conditioning reagent.

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