Process for preparing diaryl carbonates or alkyl aryl carbonates from dialkyl carbonates

US8952189B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Andre Düx · Bogen, DE
• Helmut Mothes · Granger, US
• Kaspar Hallenberger · Leverkusen, DE
• Georg Ronge · Mülheim an der Ruhr, DE
• Rafael Warsitz · Essen, DE
• Pieter Ooms · Krefeld, DE
• Johann Rechner · Krefeld, DE

Key dates

• Filing date: Apr 7, 2010
• Grant date: Feb 10, 2015
• Expiry date: Oct 8, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing diaryl carbonates and/or alkyl aryl carbonates from dialkyl carbonates and aromatic hydroxy compounds using a reactive dividing wall column.