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:
Apr. 04, 2017
Filed:
Jul. 15, 2014
Applicant:
Evonik Roehm Gmbh, Darmstadt, DE;
Inventors:
Rudolf Burghardt, Darmstadt, DE;
Frederik Gluth, Duesseldorf, DE;
Gerhard Koelbl, Gernsheim, DE;
Steffen Krill, Muehltal, DE;
Torsten Balduf, Pfungstadt, DE;
Assignee:
EVONIK RÖHM GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/75 (2006.01); C07C 45/82 (2006.01); C07C 45/78 (2006.01);
U.S. Cl.
CPC ...
C07C 45/75 (2013.01); C07C 45/786 (2013.01); C07C 45/82 (2013.01);
Abstract
The present invention concerns regulating the water content in a process for production of methacrolein. Methacrolein is used in chemical synthesis particularly as an intermediate for production of methacrylic acid, methyl methacrylate or else of active, aroma or flavor chemicals. The present invention is particularly concerned with regulating the water content in a process for production of methacrolein from formaldehyde and propionaldehyde via a Mannich condensation.