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. 08, 2016
Filed:
Dec. 13, 2013
Applicants:
Luca Cameretti, Dortmund, DE;
Daniel Demicoli, Essen, DE;
Ralf Meier, Dortmund, DE;
Inventors:
Assignee:
EVONIK DEGUSSA GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/00 (2006.01); C07C 45/82 (2006.01); B01D 3/14 (2006.01);
U.S. Cl.
CPC ...
C07C 45/82 (2013.01); B01D 3/141 (2013.01);
Abstract
A process for removing a cyclododecanone-rich fraction from a dehydrogenation mixture containing low boilers, cyclododecanone, medium boilers, cyclododecanol and high boilers is provided. According to the process, the cyclododecanone is separated from the cyclododecanol in a dividing wall column. The apparatus which is the dividing wall column is also provided within this invention.