Hydroformylation of olefinically unsaturated compounds

Details Hydroformylation of olefinically unsaturated compounds Hydroformylation of olefinically unsaturated compounds

1981-11-23

1983-08-23

Lone, Werren B.

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

Organic compounds

Oxygen containing

562522, 562521, 568909, C07C 4550

Patent

active

044005490

ABSTRACT:
A process for hydroformylating olefinically unsaturated compounds by means of rhodium/triphenylphosphine/carbonyl complexes formed in situ from rhodium acetate, triphenylphosphine and carbon monoxide, wherein the hydroformylation reaction is preceded by a starting phase in which the mixture of the hydroformylation medium, the triphenylphosphine and rhodium acetate is heated at from 90.degree. to 120.degree. C. under a CO/H.sub.2 pressure of from 5 to 20 bar and the acetic acid liberated is discharged from the reactor in gaseous form in a stream of CO and H.sub.2, until virtually no more acetic acid can be detected in this gaseous discharge.

REFERENCES:
patent: 4159999 (1979-07-01), Stautzenberger
patent: 4258214 (1981-03-01), Bahrmann et al.

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