Process for the hydroformylation of an olefin

Details Process for the hydroformylation of an olefin Process for the hydroformylation of an olefin

1987-12-16

1989-04-18

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 4550

Patent

active

048229172

ABSTRACT:
A process for the hydroformylation of an olefin, which comprises hydroformylating an olefinic compound by reacting it with carbon monoxide and hydrogen in a hydroformylation reaction zone in the presence of a catalyst solution containing rhodium and an oxide of an organic trivalent phosphorus compound to form an aldehyde having a carbon number larger by one than that of the olefinic compound; adding an organic trivalent phosphorus compound to the reaction mixture, followed by distillation to separate a distillate containing the aldehyde from a high-boiling residue containing rhodium; oxidizing the high-boiling residue at the same time as or subsequent to the distillation to convert the organic trivalent phosphorus compound to its oxide; and recycling the oxidized residue to the hydroformylation reaction zone as a recycling catalyst solution, wherein the hydroformylation reaction is conducted under a condition such that the proportion of an alcohol content supplied as contained in the recycling catalyst solution is maintained at a level of not higher than 14% by weight based on the total amount of the olefinic compound and the catalyst solution supplied to the hydroformylation reaction zone.

REFERENCES:
patent: 3920754 (1975-11-01), Wu et al.
patent: 3932523 (1976-01-01), Strohmeyer et al.
patent: 3954877 (1976-05-01), Gipson
patent: 4221743 (1980-07-01), Halstead et al.
patent: 4400547 (1983-08-01), Dawes et al.
patent: 4528403 (1985-07-01), Tano et al.

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