Process for the separation and recovery of rhodium from the prod

Details Process for the separation and recovery of rhodium from the prod Process for the separation and recovery of rhodium from the prod

1992-06-23

1994-03-15

Langel, Wayne

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Platinum group metal

502 22, 502 25, 502 29, 502 30, 502 31, 502 32, 502 34, C01G 5500, C22B 1100, B01J 3848, B01J 3864

Patent

active

052944158

ABSTRACT:
To separate and recover rhodium, the distillation residues of oxo synthesis products are initially treated with an oxidant. Then the reaction mixture is reacted, in the presence of carbon monoxide (or a compound which splits off carbon monoxide), with an aqueous solution of a reagent forming a water-soluble complex compound with rhodium. The reaction mixture breaks into an organic phase and an aqueous phase, the complex goes to the aqueous phase as it is substantially insoluble in the organic phase.

REFERENCES:
patent: 4021463 (1977-05-01), Kummer et al.
patent: 4990639 (1991-02-01), Bexten et al.
patent: 5091350 (1992-02-01), Cornils et al.

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