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:
Sep. 06, 2022
Filed:
May. 12, 2020
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Guido Stochniol, Haltern am See, DE;
Stephan Peitz, Oer-Erkenschwick, DE;
Fabian Nadolny, Leipzig, DE;
Benjamin William Berntsson, Duesseldorf, DE;
Helene Reeker, Dortmund, DE;
Reiner Bukohl, Marl, DE;
Niklas Paul, Marl, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 2/10 (2006.01); C07C 11/08 (2006.01);
U.S. Cl.
CPC ...
C07C 2/10 (2013.01); C07C 11/08 (2013.01); C07C 2523/755 (2013.01);
Abstract
A process for the oligomerization of C- to C-olefins proceeds in the presence of a catalyst, wherein the oligomerization is carried out in at least one reaction stage which includes at least one reactor and at least one distillation column. The content of oligomers in the feed stream to the at least one reaction stage after removal of the oligomers in the at least one distillation column is less than 0.4% by weight.