Method for producing tetraethylenepentamine

US8440852B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Kirsten Dahmen · Mannheim, DE
• Alfred Oftring · Bad Dürkheim, DE
• Randolf Hugo · Dirmstein, DE
• Thilo Hahn · Kirchheimbolanden, DE
• Katrin Baumann · Mannheim, DE
• Johann-Peter Melder · Schifferstadt, DE

Key dates

• Filing date: Feb 27, 2008
• Grant date: May 14, 2013
• Expiry date: Mar 3, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C255/25
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing tetraethylenepentamine (TEPA) by hydrogenation of diethylenetriaminediacetonitrile (DETDN) over a catalyst. If appropriate, DETDN can also be present as a constituent of an amino nitrile mixture which additionally comprises diethylenetriaminemonoacetonitrile (DETMN).