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:
Jul. 26, 2022
Filed:
Jul. 09, 2021
Evonik Operations Gmbh, Essen, DE;
Alexander Brächer, Haltern am See, DE;
Johannes Knossalla, Gahlen, DE;
Dirk Fridag, Haltern am See, DE;
Robert Franke, Marl, DE;
Frederik Gluth, Mülheim an der Ruhr, DE;
Marc Schäpertöns, Recklinghausen, DE;
Christoph Kubis, Neinhagen, DE;
Anna Chiara Sale, Recklinghausen, DE;
Peter Kucmierczyk, Herne, DE;
Ana Markovic, Haltern am See, DE;
Evonik Operations GmbH, Essen, DE;
Abstract
The present invention provides a process for preparing aldehydes from C2 to C20 olefins using a subsequent membrane separation to separate the homogeneously dissolved catalyst system, wherein prior to the membrane separation a gas exchange that increases the partial pressure fraction of carbon monoxide or hydrogen is carried out in order to boost catalyst retention by the membrane.