Method for producing C2-C4 mono alkanol amines using an acid cation exchanger as a catalyst

US11753364B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Christian Gruenanger · Mannheim, DE
• Gabriele Iffland · Heidelberg, DE
• Zeljko Kotanjac · Ludwigshafen am Rhein, DE
• Hermann Luyken · Ludwigshafen, DE
• Thomas Krug · Worms, DE
• Jian Yi · Carlsbad, US
• Johann-Peter Melder · Schifferstadt, DE

Key dates

• Filing date: Jan 28, 2019
• Grant date: Sep 12, 2023
• Expiry date: Jul 20, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J31/08
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for continuous production of C2-C4-monoalkanolamines by reaction of a corresponding C2-C4-alkylene oxide with a molar excess of ammonia (NH3), wherein aqueous ammonia is employed, in the liquid phase and in the presence of an acidic cation exchanger as catalyst which contains a crosslinked copolymer comprising acidic functional groups as the carrier matrix, wherein the cation exchanger has a total exchange capacity of not less than 1.8 eq/L.