Abstract:

Ethylene glycol prepared from synthesis gas via oxalate esters can ease the dependence on the foreign market, which conforms to the situation of resources in china. Advances in the preparation of oxalate esters by carbon monoxide coupling reaction in the presence of catalysts and in the hydrogenation of oxalate esters were summarized and analyzed. At present, the process for the synthesis of oxalate esters via carbon monoxide is mature, but there are still some problems in the life of catalysts for the hydrogenation of oxalate esters, which need to be researched further.