Process for the preparation of bifunctional anion exchange resins, new bifunctional anion exchange resins and use thereof

US4988738A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Alfred Mitschker · Odenthal, DE
• Peter M. Lange · Leverkusen, DE
• Harold Heller · Narberth, US
• Friedrich Werner · Cologne, DE
• Hans-Karl Soest · Cologne, DE
• Gunter Siegers · Bensberg, DE

Key dates

• Filing date: Jun 30, 1989
• Grant date: Jan 29, 1991
• Expiry date: Jun 30, 2009

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J41/05
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for the preparation of a bifunctional anion exchange resin by partial quaternization of a weakly basic anion exchanger containing tertiary amino groups which process comprises (a) partially loading the weakly basic anion exchanger with a strong acid and (b) quaternizing the partially loaded anion exchanger by means of a customary alkylating agent.