Process for preparing a boron containing zeolitic material having MWW framework structure

US10046974B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Andrei-Nicolae Parvulescu · Ludwigshafen am Rhein, DE
• Ulrich Mueller · Hamburg, DE
• Hans-Juergen Luetzel · Haßloch, DE
• Georg Uhl · Kaiserslautern, DE
• Robert Bayer · Sinsheim, DE
• Regina Vogelsang · Ludwigshafen, DE
• Robert Schlosser · Schifferstadt, DE
• Franky Ruslim · Mannheim, DE
• Pawel Czajka · Mannheim, DE

Key dates

• Filing date: Feb 5, 2014
• Grant date: Aug 14, 2018
• Expiry date: Feb 10, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/90
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for preparing an aluminum-free boron containing zeolitic material comprising the framework structure MWW (BMWW), comprising (a) hydrothermally synthesizing the BMWW from a synthesis mixture containing water, a silicon source, a boron source, and an MWW template compound obtaining the BMWW in its mother liquor, the mother liquor having a pH above 9; (b) adjusting the pH of the mother liquor, obtained in (a) and containing the BMWW, to a value in the range of from 6 to 9; (c) separating the BMWW from the pH-adjusted mother liquor obtained in (b) by filtration in a filtration device.