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:
Jan. 23, 2018
Filed:
Dec. 10, 2014
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Andreas Weickgenannt, Mannheim, DE;
Bernd Bastian Schaack, Bensheim, DE;
Barbara Wucher, Laudenbach, DE;
Alexander Panchenko, Ludwigshafen, DE;
Frank Hettche, Weinheim, DE;
Martin Bock, Ludwigshafen, DE;
Aik Meam Tan, Speyer, DE;
Kirsten Dahmen, Bad Duerkheim, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/72 (2006.01); B01J 23/46 (2006.01); B01J 35/10 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01); B01J 37/18 (2006.01);
U.S. Cl.
CPC ...
C07C 209/72 (2013.01); B01J 23/462 (2013.01); B01J 35/1014 (2013.01); B01J 35/1038 (2013.01); B01J 35/1042 (2013.01); B01J 37/0225 (2013.01); B01J 37/0236 (2013.01); B01J 37/08 (2013.01); B01J 37/18 (2013.01); Y02P 20/582 (2015.11);
Abstract
The present invention relates to a process for hydrogenating 4,4'-methylenedianiline and/or polymeric MDA with hydrogen in the presence of a catalyst comprising ruthenium on a zirconium oxide support material, and also to the use of a catalyst comprising ruthenium on a zirconium oxide support material for hydrogenating 4,4′-methylenedianiline and/or polymeric MDA.