Process for preparing ethyl tert-butyl ether using ethanol dewatered by a membrane process

US7473808B2 · kind B2 · utility

Assignee

• OXENO OLEFINCHEMIE GMBH · DE

Inventors

• Armin Matthias Rix · Marl, DE
• Frank Hoeper · Haltern am See, DE
• Jochen Praefke · Johannesweg, DE
• Wilfried Bueschken · Haltern, DE

Key dates

• Filing date: Apr 7, 2008
• Grant date: Jan 6, 2009
• Expiry date: Apr 7, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2317/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for preparing ethyl tert-butyl ether (ETBE) using low-water ethanol obtained by membrane dewatering at least two streams of relatively water-rich ethanol that have a different water content. by dewatering at membranes.