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, 2015
Filed:
Jan. 14, 2009
Applicants:
Joachim Pfeffinger, Ludwigshafen, DE;
Willi Doell, Beindersheim, DE;
Inventors:
Joachim Pfeffinger, Ludwigshafen, DE;
Willi Doell, Beindersheim, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 211/35 (2006.01); C07C 211/36 (2006.01); C08K 5/14 (2006.01); C07C 209/72 (2006.01); C07C 211/44 (2006.01);
U.S. Cl.
CPC ...
C08K 5/14 (2013.01); C07C 209/72 (2013.01); C07C 211/44 (2013.01); C07C 2101/14 (2013.01);
Abstract
A process for preparing cycloaliphatic amines by hydrogenating the corresponding aromatic compounds with hydrogen-comprising gas at a temperature of from 30 to 280° C. and a pressure of 50-350 bar, in the presence of ruthenium catalysts. The hydrogenation is performed in the presence of from 1% by weight to 500% by weight, based on the catalyst calculated as elemental ruthenium (Ru), of suspended inorganic additives, and to the use of the cycloaliphatic amines as a synthesis unit.