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. 17, 2015
Filed:
Dec. 05, 2011
Stefanie Haase, Bretnig-Hauswalde, DE;
Dusko Kadijevic, Dresden, DE;
Anne-kathrin Merten, Lauchhammer, DE;
Michael Zoellinger, Eislingen, DE;
Andreas Raichle, Ludwigshafen, DE;
Alexander Schocker, Mannheim, DE;
Sandra Mühlbeyer, Frankenthal, DE;
Olaf Wiedenhoff, St. Leon-Rot, DE;
Joana Coelho Tsou, Brüssels, BE;
Stefanie Haase, Bretnig-Hauswalde, DE;
Dusko Kadijevic, Dresden, DE;
Anne-Kathrin Merten, Lauchhammer, DE;
Michael Zoellinger, Eislingen, DE;
Andreas Raichle, Ludwigshafen, DE;
Alexander Schocker, Mannheim, DE;
Sandra Mühlbeyer, Frankenthal, DE;
Olaf Wiedenhoff, St. Leon-Rot, DE;
Joana Coelho Tsou, Brüssels, BE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, forming a fluid, amine-comprising reaction mixture in a reactor, wherein chromatographic analysis of the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.