The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2018
Filed:
May. 20, 2015
Frank Geilen, Haltern am See, DE;
Katrin Marie Dyballa, Recklinghausen, DE;
Dieter Hess, Marl, DE;
Stephan Peitz, Oer-Erkenschwick, DE;
Robert Franke, Marl, DE;
Dirk Fridag, Haltern am See, DE;
Dietrich Maschmeyer, Recklinghausen, DE;
Helene Reeker, Dortmund, DE;
Guido Stochniol, Haltern am See, DE;
Frank Geilen, Haltern am See, DE;
Katrin Marie Dyballa, Recklinghausen, DE;
Dieter Hess, Marl, DE;
Stephan Peitz, Oer-Erkenschwick, DE;
Robert Franke, Marl, DE;
Dirk Fridag, Haltern am See, DE;
Dietrich Maschmeyer, Recklinghausen, DE;
Helene Reeker, Dortmund, DE;
Guido Stochniol, Haltern am See, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
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.