Devices and method for continuous distillative separation of a mixture containing one or more alkanolamine(s)

US8674140B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Willi Schmidt · Ludwigshafen, DE
• Gerd Kaibel · Lampertheim, DE
• Elke Geiβbler · Ludwigshafen, DE
• Wolfgang Reif · Bischofswerda, DE
• Manfred Julius · Schifferstadt, DE
• Frank-Friedrich Pape · Kleinniedesheim, DE

Key dates

• Filing date: Sep 16, 2009
• Grant date: Mar 18, 2014
• Expiry date: Sep 2, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Apparatus and processes for continuous distillative separation of a mixture comprising one or more alkanolamine(s), wherein the separation is performed in one or more dividing wall column(s) and the alkanolamine or the alkanolamines is/are withdrawn as a side draw stream or side draw streams (side fraction(s)).