Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...
Patent
1983-09-20
1985-03-12
Carter, Herbert T.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Treating with a liquid or treating in a liquid phase,...
423 22, 502 26, 502 27, B01J 3140
Patent
active
045045887
ABSTRACT:
To recover a hydroformylation catalyst system containing rhodium and phosphine, the aqueous solution containing the catalyst system is mixed with acid and then extracted with an amine which is dissolved in an organic solvent. The organic phase is separated and treated with the aqueous solution of an inorganic base, thereby recovering the catalyst in essentially pure form as an aqueous solution.
REFERENCES:
patent: 3473921 (1969-10-01), Schmuckler
patent: 3558288 (1971-01-01), Burrows
patent: 3960549 (1976-06-01), MacGregor
patent: 3968134 (1976-07-01), Gregorio et al.
Borbat et al., "Chem. Absts.", vol. 65, 1966, 11423c.
Bexten Ludger
Cornils Boy
Gartner Roderich
Kupies Dieter
Bierman Jordan B.
Carter Herbert T.
Ruhrchemie Aktiengesellschaft
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