Process for the preparation of glycol aldehyde and the...

Details Process for the preparation of glycol aldehyde and the... Process for the preparation of glycol aldehyde and the...

C - Chemistry, Metallurgy

07

C

260/570.6, 260/6

C07C 31/20 (2006.01) C07C 29/141 (2006.01) C07C 45/68 (2006.01) C07C 47/19 (2006.01)

Patent

CA 1223277

A B S T R A C T PROCESS FOR THE PREPARATION OF GLYCOL ALDEHYDE AND THE PRODUCTION OF ETHYLENE GLYCOL THEREFROM Process for the preparation of glycol aldehyde which com- prises reacting formaldehyde with hydrogen and carbon monoxide in the presence of a catalyst system derived from a rhodium-con- taining catalyst precursor and/or a cobalt-containing catalyst precursor and an acid having a pKa >3.5 and a promoter XR3, X representing P, As or Sb and each R representing a (dis)similar substituted or unsubstituted hydrocarbyl group; at least one R representing an aryl group containing one or more electron- withdrawing groups. Process for the production of ethylene glycol from glycol aldehyde thus prepared.

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