Method for conditioning ion exchangers

US6723881B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Michael Bödiger · Dormagen, DE
• Rainer Neumann · Krefeld, DE
• Frieder Heydenreich · Düsseldorf, DE
• Michael Prein · Brasschaat, BE
• Gerhard Fennhoff · Willich, DE
• Ulrich Schnegg · Leverkusen, DE
• Rudolf Wagner · Fontnas, CH
• Wolfgang Wambach
• Reinhold Klipper · Neunburg vorm Wald, DE

Key dates

• Filing date: Aug 28, 2002
• Grant date: Apr 20, 2004
• Expiry date: Aug 28, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2231/347
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Monodisperse cation-exchangers and anon-exchangers are conditioned by a process and thereafter used as catalysts and for the production of bisphenols.