2-butanol production method

C - Chemistry – Metallurgy – 12 – P

Patent

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C12P 7/16 (2006.01)

Patent

CA 2565675

The inventive method for producing 2-butanol by enzymatic catalysed reduction of a 2-butanone with a carbonyl reductase and a coenzyme consists in bringing an aqueous carbonyl reductase-containing phase into contact with a coenzyme in order to reduce the 2-butanone with an alcohol phase which is not mixable with the aqueous phase and contains the 2-butanone, provided that alcohol which is present in the alcoholic phase is a secondary alcohol capable to regenerate the coenzyme and has a boiling point greater than a water boiling point, the thus produced 2-butanol being afterwards separated.

L'invention concerne un procédé permettant de produire du 2-butanol par réduction catalysée par voie enzymatique de 2-butanone avec une réductase de carbonyle et une coenzyme. Ledit procédé se caractérise en ce qu'une phase aqueuse qui contient la réductase de carbonyle et la coenzyme est mise en contact, pour réduire le 2-butanone, avec une phase alcoolique, qui n'est pas miscible avec la phase aqueuse et contient du 2-butanone, sous réserve que l'alcool présent dans la phase alcoolique soit un alcool secondaire, en mesure de régénérer la coenzyme et présentant un point d'ébullition supérieur à celui de l'eau, le 2-butanol formé étant ensuite séparé.

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