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:
Feb. 22, 2022
Filed:
Aug. 12, 2020
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Stephan Peitz, Oer-Erkenschwick, DE;
Guido Stochniol, Haltern am See, DE;
Armin Matthias Rix, Marl, DE;
Niklas Paul, Marl, DE;
Tatina Valèrie Six, Dortmund, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/04 (2006.01); B01D 3/00 (2006.01); B01D 3/14 (2006.01); B01J 23/78 (2006.01); C07C 2/10 (2006.01);
U.S. Cl.
CPC ...
C07C 7/04 (2013.01); B01D 3/009 (2013.01); B01D 3/143 (2013.01); B01J 23/78 (2013.01); C07C 2/10 (2013.01); C07C 2523/78 (2013.01);
Abstract
The present invention relates to a process for oligomerization of C2- to C8-olefins in at least two reaction stages, wherein in the last distillation column the reaction mixture is fractionated such that only very small amounts of the oligomers formed remain in the distillate.