Novel rhodium recovery

Details Novel rhodium recovery Novel rhodium recovery

1990-09-26

1992-02-25

Prescott, Arthur C.

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

Organic compounds

Heavy metal containing

423 22, C07F 1500

Patent

active

050915460

ABSTRACT:
A process for the recovery of rhodium from distillation residues of crude products from the oxo synthesis with rhodium complexed with an organic phosphorous III compound comprising treating the said distillation residues with oxygen or an oxygen containing gas in the presence of an alkali metal salt of a monocarboxylic acid of 2 to 5 carbon atoms at 60.degree. to 120.degree. C. at atmospheric or elevated pressure to form a water-soluble rhodium compound and extracting the mixture with water to obtain an aqueous phase containing the water soluble rhodium compound in a very simple manner without any substantial loss of rhodium.

REFERENCES:
patent: 4390473 (1983-06-01), Cooper
patent: 4625069 (1986-11-01), Siedle et al.
patent: 4743699 (1988-05-01), Page et al.
patent: 4987242 (1991-01-01), Khanna et al.

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