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:
Dec. 05, 2023
Filed:
Feb. 06, 2023
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Alexander Brächer, Haltern am See, DE;
Ana Markovic, Haltern am See, DE;
Anna Chiara Sale, Recklinghausen, DE;
Dirk Fridag, Haltern am See, DE;
Johannes Knossalla, Gahlen, DE;
Peter Kucmierczyk, Herne, DE;
Robert Franke, Marl, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/50 (2006.01); B01J 31/18 (2006.01); C07C 45/77 (2006.01); C07C 45/78 (2006.01);
U.S. Cl.
CPC ...
C07C 45/77 (2013.01); B01J 31/1845 (2013.01); C07C 45/786 (2013.01);
Abstract
A process can be used for preparing aldehydes from C2 to C20 olefins with a subsequent thermal separation for removal of the aldehyde formed. The process involves a membrane separation, which is preceded by performance of a gas exchange by which the proportion of the partial pressure represented by carbon monoxide or hydrogen is increased in order to reduce catalyst losses.