Method for producing (meth)acrylic acid esters

US6187947A · kind A · utility

Assignee

• BASF SE

Inventors

• Heinrich Aichinger · Mannheim, DE
• Michael Fried · Heidelberg, DE
• Gerhard Nestler · Ludwigshafen, DE

Key dates

• Filing date: May 25, 1999
• Grant date: Feb 13, 2001
• Expiry date: May 25, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/54
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The disclosure is a process for preparing (meth)acrylic esters by reacting (meth)acrylic acid with C.sub.4 -C.sub.6 -alkanols in the presence of a strong inorganic acid or of a C.sub.4 -C.sub.6 -monoalkyl ester of a polybasic strong acid as catalyst, which comprises removing the unconverted alkanol from the resulting reaction mixture by distillation and thereafter removing the catalyst from the resulting mixture.