Process for modification of a molecular sieve

US5039641A · kind A · utility

Assignee

• Europese Economische Gemeenschap (E E G) · BE

Inventors

• Etienne Vansant · Zoersel, BE
• Serge Moreau · Vélizy-Villacoublay, FR
• Jan Verbiest · Borgerhout, BE
• Paul de Bievre · Kasterlee, BE
• Jos Philippaerts · Houthalen, BE

Key dates

• Filing date: Feb 8, 1989
• Grant date: Aug 13, 1991
• Expiry date: Feb 8, 2009

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D53/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a process for modifying a molecular sieve, whereby the molecular sieve is brought into contact with a modifying agent containing at least one weak acid, a salt of a weak acid or a derivative of a weak acid of at least one element of Groups III, IV or V of the Periodic Table of Elements, by dry mixing the molecular sieve and the modifying agent, optionally followed by adding liquid to form a slurry or paste, whereafter the resulting mixture is subjected to a thermal treatment.