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:
May. 05, 2015
Filed:
Aug. 29, 2012
Applicants:
Hans Joachim Hasselbach, Gelnhausen, DE;
Martin Koerfer, Kahl, DE;
Christof P. Gruener, Mobile, AL (US);
Franz H. Hanrath, Mobile, AL (US);
Juergen Stock, Frankfurt, DE;
Jignesh Gangadwala, Mobile, AL (US);
Horst Krull, Hanau, DE;
Inventors:
Hans Joachim Hasselbach, Gelnhausen, DE;
Martin Koerfer, Kahl, DE;
Christof P. Gruener, Mobile, AL (US);
Franz H. Hanrath, Mobile, AL (US);
Juergen Stock, Frankfurt, DE;
Jignesh Gangadwala, Mobile, AL (US);
Horst Krull, Hanau, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01J 19/24 (2006.01); C07C 319/20 (2006.01); C07D 233/76 (2006.01); B01D 3/00 (2006.01);
U.S. Cl.
CPC ...
C07C 319/20 (2013.01); C07D 233/76 (2013.01); B01J 19/24 (2013.01); B01D 3/009 (2013.01);
Abstract
A reaction system suitable for production of a methionine salt contains a reactive rectification column containing a weir having a height of 100 mm or more.