Process for the preparation of alkylene glycols

Details Process for the preparation of alkylene glycols Process for the preparation of alkylene glycols

C - Chemistry, Metallurgy

07

C

C07C 31/20 (2006.01) C07C 29/10 (2006.01) C07C 41/02 (2006.01) C07C 43/11 (2006.01)

Patent

CA 2182288

A process for the preparation of alkylene glycols by reacting an alkylene oxide with water in the presence of a catalyst composition comprising a solid material having one or more electropositive sites, which are coordinated with one or more anions other than metalate and halogen anions, with the proviso that when the solid material is an anionic exchange resin of the quaternary ammonium type and the anion is bicarbonate, the process is performed in the substantial absence of carbon dioxide.

L'invention concerne un procédé de préparation de glycols d'alkylène par réaction d'un oxyde d'alkylène avec de l'eau en présence d'une composition catalyseuse qui comprend un matériau solide ayant un ou plusieurs sites électropositifs qui sont coordonnés avec un ou plusieurs anions autres que des anions de métallate ou d'halogène, sous réserve que si le matériau solide est une résine échangeuse d'anions de type ammonium quaternaire et que l'anion est du bicarbonate, le processus puisse se dérouler en l'absence de dioxyde de carbone.

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