Process for the production of methacrylic acid

Jerome le Notre (Inventor), E.L. Scott (Inventor), R.L. Croes (Inventor), J. van Haveren (Inventor)

Research output: PatentOther research output

Abstract

Disclosed is a method of making methacrylic acid, or a carboxylic derivative thereof, from itaconic acid, isomers, or precursors thereof. A starting material comprising an acid selected from the group consisting of itaconic acid, citraconic acid, mesaconic acid, citric acid, aconitic acid, isocitric acid and mixtures thereof, is subjected to contact with 0.1 eq. to 3.0 eq. of a base, at a temperature of 150°C to 350°C, under the influence of a transition metal-containing heterogeneous catalyst. A better yield at lower temperatures is achieved.
Original languageEnglish
Patent numberWO2015030580
Priority date26/08/13
Publication statusPublished - 5 Mar 2015

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