Process for the preparation of ethanolamines

US6469214B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Johann-Peter Melder · Schifferstadt, DE
• Gerhard Schulz · Ludwigshafen, DE

Key dates

• Filing date: Nov 29, 2001
• Grant date: Oct 22, 2002
• Expiry date: Nov 29, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C213/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of one or more ethanolamines (I), chosen from the group consisting of monoethanolamine, diethanolamine and triethanolamine, by conversion of one or more ethanolamines (II) different from the ethanolamine(s) (I), chosen from the group consisting of monoethanolamine, diethanolamine, triethanolamine. O,N,N-tris(2-hydroxyethyl) ethanol-N-(2-aminoethyl)-ethanolamine, N-(2-amine, hydroxy ethyl) piperazine, N-(2-hydroxyethyl)morpholine and N,N′-bis(2-hydroxyethyl)piperazine, where the ethanolamine(s) (II), optionally in the presence of ammonia, is/are treated with a strong base.