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:
Nov. 29, 2016
Filed:
Aug. 21, 2006
Applicants:
Petr Kubanek, Mannheim, DE;
Ekkehard Schwab, Neustadt, DE;
Frederik Van Laar, Dubai, AE;
Wolfgang Mackenroth, Bad Duerkheim, DE;
Inventors:
Petr Kubanek, Mannheim, DE;
Ekkehard Schwab, Neustadt, DE;
Frederik van Laar, Dubai, AE;
Wolfgang Mackenroth, Bad Duerkheim, DE;
Assignee:
BASF AKTEINGESELLSCHAFT, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/36 (2006.01); B01J 21/18 (2006.01); B01J 23/89 (2006.01); B01J 37/02 (2006.01); B01J 37/16 (2006.01);
U.S. Cl.
CPC ...
C07C 209/36 (2013.01); B01J 21/18 (2013.01); B01J 23/892 (2013.01); B01J 23/8953 (2013.01); B01J 37/0201 (2013.01); B01J 37/16 (2013.01); Y02P 20/52 (2015.11);
Abstract
The invention provides a process for preparing aromatic amines by catalytically hydrogenating the corresponding nitro compounds, especially for preparing tolylenediamine by hydrogenating dinitrotoluene, which comprises using hydrogenation catalysts in which the active component present is a mixture of platinum, nickel and an additional metal on a support.