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:
Apr. 17, 2018
Filed:
Jul. 16, 2014
Basf SE, Ludwigshafen, DE;
Dow Global Technologies Llc, Midland, MI (US);
Andrei-Nicolae Parvulescu, Heidelberg, DE;
Ulrich Mueller, Neustadt, DE;
Joaquim Henrique Teles, Waldsee, DE;
Bianca Seelig, Cologne, DE;
Philip Kampe, Singapore, SG;
Markus Weber, Limburgerhof, DE;
Peter Resch, Hettenleidelheim, DE;
Christian Bartosch, Mannheim, DE;
Dominic Riedel, Mannheim, DE;
Daniel Urbanczyk, Griesheim, DE;
Alexander Schroeder, Wattenheim, DE;
Ulrike Wegerle, Worms, DE;
BASF SE, Ludwigshafen, DE;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The present invention relates to a process for the regeneration of a catalyst comprising a titanium-containing zeolite, said catalyst having been used in a process for the preparation of an olefin oxide and having phosphate deposited thereon, said process for the regeneration comprising the steps: (a) separating the reaction mixture from the catalyst, (b) washing the catalyst obtained from (a) with liquid aqueous system; (c) optionally drying the catalyst obtained from (b) in a gas stream comprising an inert gas at a temperature of less than 300° C.; (d) calcining the catalyst obtained from (c) in a gas stream comprising oxygen at a temperature of at least 300° C.