Method for preparing aldehydes by hydroformylation
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United States of America Patent
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Jan 15, 2002
Grant Date -
N/A
app pub date -
May 16, 2000
filing date -
Sep 16, 1997
priority date (Note) -
Expired
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Abstract
A catalyst composition comprising a) more than 70% by weight of a polyethylene glycol of the formula H--(OCH.sub.2 --CH.sub.2).sub.n --OH, where n is an integer of 3 to 16 and the number average molecular weight is less than 650 b) rhodium in elemental form or bound form and c) 2 to 25% by weight of water soluble sulfonated triarylphosphine ligand having 1 to 2 phophorus atoms and not more than 25% by weight of water based on the total amount of the catalyst and its use for the hydroformylation of olefins to aldehydes is described.
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