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. 15, 2022
Filed:
Nov. 19, 2018
Applicant:
Basf SE, Ludwigshafen am Rhein, DE;
Inventors:
Christian Eidamshaus, Ludwigshafen am Rhein, DE;
Johann-Peter Melder, Ludwigshafen am Rhein, DE;
Joerg Pastre, Ludwigshafen am Rhein, DE;
Hans-Juergen Pallasch, Ludwigshafen am Rhein, DE;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 209/16 (2006.01); B01D 3/14 (2006.01); B01J 21/04 (2006.01); B01J 23/72 (2006.01); B01J 23/75 (2006.01); B01J 23/755 (2006.01); C07C 209/02 (2006.01); C07C 209/84 (2006.01); C07C 211/11 (2006.01); C07C 211/14 (2006.01);
U.S. Cl.
CPC ...
C07C 209/16 (2013.01); B01D 3/143 (2013.01); B01J 21/04 (2013.01); B01J 23/72 (2013.01); B01J 23/75 (2013.01); B01J 23/755 (2013.01); C07C 209/02 (2013.01); C07C 209/84 (2013.01); C07C 211/11 (2013.01); C07C 211/14 (2013.01);
Abstract
A process for the continuous preparation of 1,2-propylenediamine (1,2-PDA) and dimethyldiethylenetriamine (DMDETA) via reaction of monoisopropanolamine (MIPOA) with ammonia in the presence of hydrogen and a supported heterogeneous hydrogenation catalyst (catalyst), wherein the reaction is effected in the liquid phase at an absolute pressure in the range from 60 to 170 bar.