Process for the preparation of borosilicate zeolites

US4554142A · kind A · utility

Assignee

• BASF SE

Inventors

• Wolfgang Hoelderich · Bischofswerda, DE
• Wolf D. Mross · Bischofswerda, DE
• Matthias Schwarzmann · Schifferstadt, DE

Key dates

• Filing date: Oct 12, 1982
• Grant date: Nov 19, 1985
• Expiry date: Oct 12, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S423/22
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel crystalline ZBH borosilicate zeolites of the pentasil type are prepared by hydrothermal crystallization of silicon dioxide and boric acid in the presence of alkali metal salts, at from 80.degree. to 140.degree. C. in an ethereal or aqueous-ethereal mixture.