Hydrolysis of alkylene carbonates to alkylene glycols

Details Hydrolysis of alkylene carbonates to alkylene glycols Hydrolysis of alkylene carbonates to alkylene glycols

C - Chemistry, Metallurgy

07

C

260/635.7

C07C 31/20 (2006.01) C07C 29/09 (2006.01)

Patent

CA 1107301

11906 HYDROLYSIS OF ALKYLENE CARBONATES TO ALKYLENE GLYCOLS ABSTRACT This invention is concerned with producing glycols of the formula HOCHRCH2OH from the hydrolysis, in a homogeneous liquid phase mixture, of an alkylene carbonate of the formula Image in which R is either hydrogen or methyl. This is accomplished by using an amount of water in excess of stoichiometry and using potassium carbonate as the preferred catalyst. The reaction is effected under a carbon dioxide pressure of at least 80 psig and the reaction temperature is desirably between about 85°C and 500°C. S P E C I F I C A T I O N

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