Regeneration of a titanium containing zeolite

US9943838B2 · kind B2 · utility

Assignees

• BASF SE
• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Andrei-Nicolae Parvulescu · Ludwigshafen am Rhein, DE
• Ulrich Mueller · Hamburg, DE
• Joaquim Henrique Teles · Waldsee, DE
• Bianca Seelig · Cologne, DE
• Philip Kampe · Singapore, SG
• Markus Weber · Langenfeld, DE
• Peter Resch · Hettenleidelheim, DE
• Christian Bartosch · Ludwigshafen am Rhein, DE
• Dominic RIEDEL · Ludwigshafen, DE
• Daniel Urbanczyk · Ludwigshafen, DE
• Alexander Schroeder · Wattenheim, DE
• Ulrike Wegerle · Worms, DE

Key dates

• Filing date: Jul 16, 2014
• Grant date: Apr 17, 2018
• Expiry date: Jul 16, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/584
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

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.