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. 02, 2018
Filed:
Feb. 03, 2016
Applicant:
Evonik Degussa Gmbh, Essen, DE;
Inventors:
Jürgen Stock, Frankfurt, DE;
Uwe Breitenbach, Gründau, DE;
Sebastian Imm, Bad Vilbel, DE;
Jürgen Neuroth, Frankfurt, DE;
Brigitte Mess, Münster, DE;
Matthias Pascaly, Frankfurt, DE;
Assignee:
EVONIK DEGUSSA GMBH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 301/12 (2006.01);
U.S. Cl.
CPC ...
C07D 301/12 (2013.01);
Abstract
Epoxidation of an olefin is carried out by continuously reacting the olefin with hydrogen peroxide in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase using a loop reactor with mixing of the liquid phases, and during the reaction the concentration of hydrogen peroxide in the aqueous liquid phase is maintained at less than 1.0% by weight.