Patent · US Expired

Continuous preparation of alkyl esters of (meth) acrylic acid

US6472554B1 · kind B1 · utility

2Cited by

6References

14Claims

0Family size

Assignee

BASF SE

Inventors

Petra Deckert · Bammental, DE
Holger Herbst · Bischofswerda, DE

Key dates

Filing date	Jul 19, 2000
Grant date	Oct 29, 2002
Priority date	—
Expiry date	Jul 19, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the continuous preparation of acrylates of (meth)acrylic acid by reaction of (meth)acrylic acid with alkanols of 4 to 8 carbon atoms in an esterification zone is proposed, in which the reaction mixture removed from the esterification zone is first fed to a three-stage prepurification and then worked up by rectification for isolating the desired ester.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.