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:
Oct. 16, 2018
Filed:
Jul. 23, 2015
Applicant:
Evonik Degussa Gmbh, Essen, DE;
Inventors:
Assignees:
EVONIK DEGUSSA GMBH, Essen, DE;
THYSSENKRUPP INDUSTRIAL SOLUTIONS AG, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 301/12 (2006.01); C07D 303/04 (2006.01);
U.S. Cl.
CPC ...
C07D 301/12 (2013.01); C07D 303/04 (2013.01);
Abstract
In a process for the epoxidation of an olefin, where a mixture comprising olefin, hydrogen peroxide, water and methanol with a weight ratio of water to methanol of less than 1 is passed through a catalyst fixed bed comprising a shaped titanium silicalite catalyst, catalyst breakage is reduced by conditioning the dry catalyst with at least one conditioning liquid comprising water and from 25 to 45% by weight methanol.