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用自制固体催化剂催化合成草酸二乙酯,考察了催化剂用量,反应物投料比及带水剂对反应时间和酯产率的影响,并对产品做了定性和定量分析.结果表明用固体酸催化合成草酸二乙酯,具有反应时间短,酯产率高,产物后处理简单等优点.“,”Diethyl oxalate was catalytically synthesized with a home - made solid catalyst. The amount of catalyst,influences of reactant feed ratio and extractant on reaction time and productive rate of ester were studied.Qualitative and quantitative analgsis of this product was made. It was shown in the results that using solid acid to catalytically synthesize diethl oxalate owned advantages of short short reaction time, high productive rate of ester and simplified post treatment of product