Process for preparing aldehydes in the presence of an aqueous phase containing rhodium and sulphonated triarylphosphines as catalyst
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United States of America Patent
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Aug 14, 2001
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N/A
app pub date -
Aug 30, 1999
filing date -
Jan 13, 1997
priority date (Note) -
Expired
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Abstract
The invention concerns a process for preparing aldehydes by reacting with hydrogen and carbon monoxide at a temperature of between 20 and 170.degree. C. and a pressure of between 1 and 300 bar an olefinically unsaturated C.sub.6 -C.sub.16 compound in the presence aqueous phase containing rhodium and sulphonated triarylphosphines as catalyst and between 10 and 70 wt % of a compound of formula (1), R(OCH.sub.2 CH.sub.2).sub.n OR.sup.1, R standing for hydrogen, a straight-chain or branched C.sub.1 -C.sub.4 alkyl group or a C.sub.1 -C.sub.4 hydroxyalkyl group, R.sup.1 standing for hydrogen or a methyl group, and n standing for an integer from 3 to 50.
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