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:
Nov. 29, 2022
Filed:
Sep. 01, 2021
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Stephan Peitz, Oer-Erkenschwick, DE;
Guido Stochniol, Haltern am See, DE;
Johannes Knossalla, Gahlen, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 2/28 (2006.01); C07C 7/04 (2006.01);
U.S. Cl.
CPC ...
C07C 2/28 (2013.01); C07C 7/04 (2013.01); C07C 2531/08 (2013.01);
Abstract
A process can be used for oligomerization of isobutene by conversion of an isobutene-containing hydrocarbon stream over an acid catalyst in at least one reaction stage, where a particular ratio of recycle to feed is employed.