Post-treatment of deboronated zeolite beta

US10179741B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Andrei-Nicolae Parvulescu · Ludwigshafen am Rhein, DE
• Jeff Yang · Glen Rock, US
• Stefan Maurer · Shanghai, CN
• Manuela Gaab · Ludwigshafen am Rhein, DE
• Karsten Seidel · Mannheim, DE
• Olga Gerlach · Ludwigshafen, DE
• Ulrich Mueller · Hamburg, DE

Key dates

• Filing date: Oct 9, 2013
• Grant date: Jan 15, 2019
• Expiry date: Oct 9, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2229/38
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for the post-treatment of a zeolitic material having a BEA framework structure, the process comprising (i) providing a zeolitic material having a BEA framework structure, wherein the framework structure of the zeolitic material comprises X2O3 and YO2, wherein Y is a tetravalent element and X is a trivalent element and wherein the molar ratio X2O3:YO2 is greater than 0.02:1; (ii) treating the zeolitic material provided in (i) with a liquid solvent system thereby obtaining a zeolitic material having a molar ratio X2O3:YO2 of at most 0.02:1, and at least partially separating the zeolitic material from the liquid solvent system; (iii) treating the zeolitic material obtained from (ii) with a liquid aqueous system having a pH in the range of 5.5 to 8 and a temperature of at least 75° C.