Method for producing aldehydes

Details Method for producing aldehydes Method for producing aldehydes

1995-11-08

1997-07-15

Geist, Gary

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

Organic compounds

Oxygen containing

568451, C07C 4550

Patent

active

056485530

ABSTRACT:
A method for producing aldehydes, which comprises reacting an olefin with carbon monoxide and hydrogen in a hydroformylation reaction zone in the presence of a rhodium catalyst having an organophosphorus compound as a ligand, wherein a liquid mixture derived from an effluent from the hydroformylation reaction zone, which contains an unreacted olefin and aldehyde products, is heated and then supplied to a gas-liquid contact zone, where the heated liquid mixture is countercurrently contacted with carbon monoxide and hydrogen, and a gas stream of carbon monoxide and hydrogen containing an unreacted olefin is withdrawn from the gas-liquid contact zone to separate and recover the unreacted olefin, and the recovered unreacted olefin is supplied together with the carbon monoxide and the hydrogen to the hydroformylation reaction zone.

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patent: 5288918 (1994-02-01), Maher et al.
patent: 5426238 (1995-06-01), Mori et al.
Davy McKee, Indications, (The International Journal of Davy McKee), Winter 1982/83, pp. 20-28.
Kirk-Othmer; Encyclopedia of Chemical Technology;vol. 18;Fourth edition;pp. 664-666 1966.

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