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:
Jan. 16, 2018
Filed:
Mar. 21, 2016
Applicants:
Joerg-joachim Nitz, Essen, DE;
Stephan Kohlstruk, Gladbeck, DE;
Robert Jansen, Bottrop, DE;
Andreas Merkel, Recklinghausen, DE;
Anja Mueller, Dortmund, DE;
Jan Cassens, Recklinghausen, DE;
Axel Hengstermann, Senden, DE;
Inventors:
Joerg-Joachim Nitz, Essen, DE;
Stephan Kohlstruk, Gladbeck, DE;
Robert Jansen, Bottrop, DE;
Andreas Merkel, Recklinghausen, DE;
Anja Mueller, Dortmund, DE;
Jan Cassens, Recklinghausen, DE;
Axel Hengstermann, Senden, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 253/34 (2006.01); C07C 253/10 (2006.01); B01J 39/20 (2006.01); B01J 47/02 (2017.01); B01J 31/02 (2006.01); B01J 31/40 (2006.01); B01J 47/026 (2017.01);
U.S. Cl.
CPC ...
C07C 253/34 (2013.01); B01J 31/0212 (2013.01); B01J 31/4015 (2013.01); B01J 39/20 (2013.01); B01J 47/026 (2013.01); C07C 253/10 (2013.01); C07C 2601/16 (2017.05); Y02P 20/584 (2015.11);
Abstract
Cations are removed from a substance stream that is produced during the production of isophoronenitrile with the help of a cation exchanger.