Methods for the synthesis of olefins and derivatives

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 51/347 (2006.01) C07C 57/04 (2006.01) C07C 67/333 (2006.01) C07C 69/54 (2006.01) C12P 7/46 (2006.01)

Patent

CA 2696018

The invention provides a method of producing acrylic acid. The method includes contacting fumaric acid with a sufficient amount of ethylene in the presence of a cross-metathesis transformation catalyst to produce about two moles of acrylic acid per mole of fumaric acid. Also provided is an acrylate ester. The method includes contacting fumarate diester with a sufficient amount of ethylene in the presence of a cross-metathesis transformation catalyst to produce about two moles of acrylate ester per mole of fumarate diester. An integrated process for process for producing acrylic acid or acrylate ester is provided which couples bioproduction of fumaric acid with metathesis transformation. An acrylic acid and an acrylate ester production also is provided.

L'invention concerne un procédé de production d'acide acrylique, qui comporte les étapes consistant à: mettre en contact de l'acide fumarique avec une quantité suffisante d'éthylène, en présence d'un catalyseur de transformation par métathèse croisée afin de produire environ deux moles d'acide acrylique par mole d'acide fumarique. L'invention concerne aussi un ester d'acrylate. Le procédé comporte les étapes consistant à: mettre en contact un diester de fumarate avec une quantité suffisante d'éthylène en présence d'un catalyseur de transformation par métathèse croisée afin de produire environ deux moles d'ester d'acrylate par mole de diester de fumarate. L'invention concerne un procédé intégré de production d'acide acrylique ou d'ester d'acrylate qui couple la bioproduction d'acide fumarique avec une transformation par métathèse. L'invention concerne aussi la production d'un acide acrylique et d'un ester d'acrylate.

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