Preparation of high-quality oxo process alcohols from inconstant raw material sources

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United States of America Patent

PATENT NO 9914681
APP PUB NO 20150336861A1
SERIAL NO

14717183

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Abstract

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The preparation of high-quality oxo process alcohols from inconstant raw material sources is the technically demanding problem which is addressed by a process for continuously preparing an alcohol mixture, in which an input mixture which contains an olefin and has a composition that changes over time is subjected to an oligomerization to obtain an oligomerizate and at least a portion of the olefin oligomers present in the oligomerizate are hydroformylated with carbon monoxide and hydrogen in a hydroformylation in the presence of a homogeneous catalyst system to give aldehydes, at least some of which are converted to the alcohol mixture by subsequent hydrogenation. The process provides a constant plasticizer quality to be produced over a long production period and, optionally, a higher throughput with the same product quality. This is achieved a) by control of the temperature and/or the conversion of the oligomerization as a function of the current composition of the oligomerizate; and b) by control of the composition of the catalyst system and/or of the pressure of the hydroformylation as a function of the current composition of the aldehydes.

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Patent Owner(s)

Patent OwnerAddress
EVONIK OXENO GMBH & CO KGMARL

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dyballa, Katrin Marie Recklinghausen, DE 90 336
Franke, Robert Marl, DE 223 716
Fridag, Dirk Haltern am See, DE 136 638
Geilen, Frank Haltern am See, DE 40 260
Hess, Dieter Marl, DE 82 699
Maschmeyer, Dietrich Recklinghausen, DE 55 575
Peitz, Stephan Oer-Erkenschwick, DE 45 371
Reeker, Helene Dortmund, DE 15 93
Stochniol, Guido Haltern am See, DE 87 869

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