Process for the preparation of N-alkypolyhydroxyalkylamines from monoalkylamine and reducing sugar

US6365778B1 · kind B1 · utility

Assignee

• Clariant Corporation · DE

Inventors

• Andreas Gallas · Neuötting, DE
• Johann Franz Hanauer · Unterneukirchen, DE
• Hubert Seitz · Altötting, DE
• Frank Weinelt · Altötting, DE

Key dates

• Filing date: Mar 9, 2000
• Grant date: Apr 2, 2002
• Expiry date: Mar 9, 2020

Classification

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

Abstract

Aqueous, alcoholic or aqueous-alcoholic solutions of a monoalkylamine and a reducing sugar are simultaneously injected into a mixing unit and the two solutions are mixed under turbulence in the mixing unit for 6 seconds to 5 minutes at a temperature of 25 to 60° C. and a pressure of 50 to 90 bar. The mixture is then added to a hydrogenation reactor and hydrogenated with hydrogen in the presence of a hydrogenation catalyst. An alkylpolyhydroxyalkylamine is obtained in high yield and with high purity.