Process for the preparation of ethylene glycol

Details Process for the preparation of ethylene glycol Process for the preparation of ethylene glycol

C - Chemistry, Metallurgy

07

C

252/64, 260/635.

C07C 29/136 (2006.01) C07C 29/149 (2006.01) C07C 31/20 (2006.01)

Patent

CA 1260918

- 32 - PROCESS FOR THE PREPARATION OF ETHYLENE GLYCOL ABSTRACT A process for the preparation of ethylene glycol by the vapor phase catalytic hydrogenation of at least one of di(lower alkyl) oxalate and lower alkyl glycolate in the presence of a hydrogenation catalyst comprising a carrier, which catalyst is suitable for the hydrogenation of alkyl oxalate and alkyl glycolate to ethylene glycol, wherein the improvement lies in preparing the catalyst by contacting the carrier with a copper ammonium carbonate complex medium and reducing the catalytically-active copper moiety to its active copper form.

500844

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