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. 24, 2020
Filed:
Apr. 13, 2017
Applicant:
Evonik Roehm Gmbh, Darmstadt, DE;
Inventors:
Assignee:
Roehm GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/00 (2006.01); B01J 8/00 (2006.01); B01J 8/22 (2006.01); C07C 67/39 (2006.01); B01J 8/18 (2006.01);
U.S. Cl.
CPC ...
B01J 8/228 (2013.01); B01J 8/006 (2013.01); B01J 8/1872 (2013.01); B01J 8/226 (2013.01); C07C 67/39 (2013.01); B01J 2208/0084 (2013.01); B01J 2208/00752 (2013.01); B01J 2208/00761 (2013.01); B01J 2208/00867 (2013.01); B01J 2219/00768 (2013.01); B01J 2219/185 (2013.01); B01J 2219/1943 (2013.01); B01J 2219/1946 (2013.01);
Abstract
A process for performing a heterogeneously catalysed reaction in a three-phase reactor, where there is at least one liquid phase, at least one gaseous phase and at least one solid phase in the reactor and the reactor has at least two zones, with the reaction mixture being conveyed downward in zone 1, the reaction mixture being conveyed upward in zone 2, zones 1 and 2 being separated from one another by a dividing wall, and in that the ratio between the average catalyst concentrations in zone 2 and in zone 1 is greater than 2.