A process for permeation enhanced reactive extraction of...

C - Chemistry – Metallurgy – 07 – C

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C07C 67/58 (2006.01) B01D 61/24 (2006.01) C07C 67/08 (2006.01)

Patent

CA 2600043

A process for permeation enhanced reactive extraction of levulinic acid from a liquid aqueous phase comprising levulinic acid, wherein the levulinic acid from the aqueous phase is brought into contact with a liquid alcohol phase at esterification conditions in the presence of a catalyst at a temperature in the range of from 50 to 250 ~C, the aqueous phase and the alcohol phase being separated from each other by a membrane, and an aqueous stream depleted in levulinic acid and an alcohol stream comprising ester of levulinic acid are formed.

La présente invention a trait à un procédé pour l'extraction réactive améliorée de perméation d'acide levulinique à partir d'une phase aqueuse liquide comprenant de l'acide levulinique, dans lequel l'acide levulinique dérivé de la phase aqueuse est mis en contact avec une phase alcoolique liquide dans des conditions d'estérification en présente d'un catalyseur à une température comprise entre 50 et 250 °C, la phase aqueuse et la phase alcoolique étant séparées l'une de l'autre par une membrane, et un flux aqueux appauvri en acide levulinique et un flux d'alcool comportant un ester d'acide levulinique sont formés.

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