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. 26, 2019
Filed:
Nov. 01, 2016
Evonik Degussa Gmbh, Essen, DE;
Thyssenkrupp Industrial Solutions Ag, Essen, DE;
Marc Brendel, Bruchköbel, DE;
Manfred Bärz, Freigericht, DE;
Johannes Kowoll, Bochum, DE;
David Bolz, Frankfurt, DE;
Willi Hofen, Rodenbach, DE;
Jürgen Schemel, Bad Soden, DE;
Bernd Jaeger, Bickenbach, DE;
Niels Bredemeyer, Waltrop, DE;
Bärbel Kolbe, Witten, DE;
Norbert Ullrich, Essen, DE;
Michael Dopfer, Sulzbach, DE;
Wolfgang Wöll, Maintal, DE;
Peter Porscha, Kelkheim, DE;
Dana Pfenning, Mannheim, DE;
Maik Bernhard, Frankfurt, DE;
Evonik Degussa GmbH, Essen, DE;
thyssenkrupp Industrial Solutions AG, Essen, DE;
Abstract
Propene is continuously reacted with hydrogen peroxide in a tube bundle reactor comprising a multitude of parallel reaction tubes in the presence of a titanium silicalite catalyst arranged as a fixed bed in the reaction tubes. A cooling jacket encloses the reaction tubes, which has a feed point for cooling medium near the entry of the reaction tubes, a withdrawal point for cooling medium near the end of the reaction tubes and at least one additional withdrawal point upstream of the withdrawal point near the end of the reaction tubes. Cooling medium is fed to the feed point for cooling medium, a part of the cooling medium is withdrawn at the at least one additional withdrawal point and the remainder exits at the withdrawal point near the end of the reaction tubes.