Isolation of high-purity triethylenediamine (TEDA) by distillation

US7132538B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ortmund Lang · Quirnbach, DE
• Bernd Rumpf · Hockenheim, DE
• Matthias Frauenkron · Freinsheim, DE
• Marco Bosch · Mannheim, DE
• Helmut Berrsche · Haßloch, DE
• Anton Meier · Birkenheide, DE

Key dates

• Filing date: Apr 22, 2004
• Grant date: Nov 7, 2006
• Expiry date: Feb 11, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/32
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Process for purifying triethylenediamine (TEDA) by disillation, in which the fractionation is carried out in a dividing wall column.