Rectification of (meth)acrylic acid with the addition of a tenside

US6806385B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Ulrich Hammon · Mannheim, DE
• Holger Herbst · Bischofswerda, DE
• Gerhard Nestler · Ludwigshafen, DE

Key dates

• Filing date: Sep 7, 2000
• Grant date: Oct 19, 2004
• Expiry date: Feb 5, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

In a process for rectificative isolation of (meth)acrylic acid from a mixture containing, as main components, (meth)acrylic acid and an organic liquid having a higher boiling point than (meth)acrylic acid, the rectification is carried out with the addition of a surfactant.