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. 12, 2023
Filed:
May. 02, 2023
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Dirk Fridag, Haltern am See, DE;
Johannes Knossalla, Gahlen, DE;
Alexander Brächer, Haltern am See, DE;
Peter Kucmierczyk, Herne, DE;
Anna Chiara Sale, Recklinghausen, DE;
Robert Franke, Marl, DE;
Ana Markovic, Haltern am See, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/50 (2006.01); B01J 31/18 (2006.01); C07C 45/83 (2006.01);
U.S. Cl.
CPC ...
C07C 45/505 (2013.01); B01J 31/185 (2013.01); C07C 45/83 (2013.01);
Abstract
A process for preparing Caldehydes involves hydroformylation of butenes with synthesis gas in the presence of a homogeneous catalyst system and a solvent. It is a feature of the process that the aldehyde concentration in the reaction mixture is limited.