Patent · US Active

Method for producing methacrylic acid

US8575388B2 · kind B2 · utility

0Cited by

2References

19Claims

0Family size

Assignee

Evonik Röhm GmbH · DE

Inventors

Udo Gropp · Bad Endorf, DE
Stefanie Sohnemann · Overath, DE
Guido Protzmann · Bensheim, DE
Thomas Mertz · Bensheim, DE

Key dates

Filing date	Jan 13, 2009
Grant date	Nov 5, 2013
Priority date	—
Expiry date	Feb 7, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/06
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a method for producing methacrylic acid by reacting methacrylamide with water, wherein said reaction is performed continuously in a tube reactor and a pressure differential exists in the flow direction of the reaction mixture inside said tube reactor. Furthermore, the present invention discloses a facility for carrying out the method according to the invention.

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