Process for preparing ethylene glycol

Details Process for preparing ethylene glycol Process for preparing ethylene glycol

C - Chemistry, Metallurgy

07

C

260/634.1, 260/6

C07C 31/20 (2006.01) C07C 29/12 (2006.01) C07C 43/13 (2006.01) C07D 301/32 (2006.01)

Patent

CA 1219602

TITLE PROCESS FOR PREPARING ETHYLENE GLYCOL INVENTOR VIJAY S. BHISE ABSTRACT OF THE DISCLOSURE Ethylene glycol is prepared by a process in which ethylene oxide is extracted from an aqueous solution with near-critical or super-critical carbon dioxide. Thereafter an ethylene oxide - carbon dioxide - water mixture is contacted with a catalyst to form ethylene carbonate, which is then hydrolyzed to ethylene glycol in the presence of the same catalyst. The ethylene glycol is separated as product and the carbon dioxide and the catalyst are recycled. I

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