Process for the production of methacrylic acid

J. Le Nôtre (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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Aconitic Acid
Citric Acid
Isomers
Transition metals
Derivatives
Temperature
Catalysts
Acids
itaconic acid
citraconic acid
methacrylic acid
isocitric acid

Cite this

Le Nôtre, J., Scott, E. L., Croes, R. L., & van Haveren, J. (2015). Process for the production of methacrylic acid. (Patent No. WO2015030580).
Le Nôtre, J. (Inventor) ; Scott, E.L. (Inventor) ; Croes, R.L. (Inventor) ; van Haveren, J. (Inventor). / Process for the production of methacrylic acid. Patent No.: WO2015030580.
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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.",
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Le Nôtre, J, Scott, EL, Croes, RL & van Haveren, J 2015, Process for the production of methacrylic acid, Patent No. WO2015030580.

Process for the production of methacrylic acid. / Le Nôtre, J. (Inventor); Scott, E.L. (Inventor); Croes, R.L. (Inventor); van Haveren, J. (Inventor).

Patent No.: WO2015030580.

Research output: PatentOther research output

TY - PAT

T1 - Process for the production of methacrylic acid

AU - Le Nôtre, J.

AU - Scott, E.L.

AU - Croes, R.L.

AU - van Haveren, J.

PY - 2015/3/5

Y1 - 2015/3/5

N2 - 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.

AB - 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.

M3 - Patent

M1 - WO2015030580

ER -

Le Nôtre J, Scott EL, Croes RL, van Haveren J, inventors. Process for the production of methacrylic acid. WO2015030580. 2015 Mar 5.