Process for production of diaryl carbonate

US8518231B2 · kind B2 · utility

Assignee

• Bayer Intellectual Property GmbH · DE

Inventors

• Pieter Ooms · Krefeld, DE
• Andreas Bulan · Langenfeld, DE
• Johann Rechner · Krefeld, DE
• Rainer Weber · Leverkusen, DE
• Marc Buts · Duffel, BE
• Johan Vanden Eynde · Zwijnaarde, BE

Key dates

• Filing date: Mar 1, 2011
• Grant date: Aug 27, 2013
• Expiry date: Mar 1, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C25B15/08
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a process for production of diaryl carbonate combined with the electrolysis of the resultant alkali metal chloride-containing process wastewater. The process according to the invention makes possible, inter alia, improved utilization in electrolysis of the alkali metal chloride-containing solution obtained in the production of diaryl carbonate.