Process for preparing N,N-dimethylaminoethoxyethanol

US8734617B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Frank-Friedrich Pape · Kleinniedesheim, DE
• Alfred Krause · Speyer, DE
• Johann-Peter Melder · Schifferstadt, DE
• Bernd Stein · San Diego, US
• Joachim-Thierry Anders · Neheim, DE
• Frank Haese · Bollingstedt, DE

Key dates

• Filing date: Mar 15, 2012
• Grant date: May 27, 2014
• Expiry date: Jan 20, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/00006
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Processes comprising: (a) reacting dimethylamine and ethylene oxide to form a product mixture comprising N,N-dimethylethanolamine and N,N-dimethylaminoethoxyethanol; (b) distilling the product mixture to obtain a bottom fraction comprising N,N-dimethylaminoethoxyethanol; and (c) distilling the bottom fraction to separate at least a portion of the N,N-dimethylaminoethoxyethanol from the bottom fraction; and apparatus for carrying out said processes.