Isolation of glycols

US6265625A · kind A · utility

Assignee

• BASF SE

Inventors

• Frans Vansant · Kalmthout, BE
• Jozef de Hert · Antwerpen, BE
• Dieter Köffer · Birkenau, DE
• Gerhard Theis · Frankenthal (Pfalz), DE
• Winfried Terjung · Dinslaken, DE

Key dates

• Filing date: Dec 1, 1999
• Grant date: Jul 24, 2001
• Expiry date: Dec 1, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

This invention relates to a process for preparing and isolating glycols and to a thin-film evaporator which is used in carrying out the process.