强酸性树脂催化制备乙醇酸甲酯  

Catalytic synthesis of methyl glycolate with strong acidic resin

作　　者：王誉蓉 刘俊涛 Wang Yurong;Liu Juntao(State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, SINOPEC Shanghai Research Institute of Petrochemical Technology, Shanghai,201208, China)

机构地区：[1]中国石化上海石油化工研究院绿色化工与工业催化国家重点实验室,上海201208

出　　处：《工业催化》2018年第4期60-63,共4页Industrial Catalysis

摘　　要：以强酸性离子交换树脂为催化剂,进行了乙醇酸酯化制备乙醇酸甲酯的试验研究,考察反应温度、醇酸物质的量比、催化剂用量及是否搅拌等因素对乙醇酸转化率与反应速率的影响。结果表明,在反应温度100℃、醇酸物质的量比8∶1、催化剂用量为乙醇酸质量的5%和搅拌的条件下,乙醇酸转化率达93%以上。This paper investigated the esterification of glycolic acid to produce methyl glycolate in the presence of strong acidic ion-exchange resin as catalyst. A series of factors,including temperature,alcohol-acid mole ratio,catalyst loading,and stirring,were employed to study their influences on the conversion rate and the reaction rate of glycolic acid. The results show that the conversion rate of glycolic acid could reach as high as 93% under the optimal conditions of reaction temperature 100 ℃,alcohol-acid mole ratio 8∶ 1,catalyst loading 5%（ based on weight）,and stirring.

关 键 词：精细化学工程 乙醇酸 乙醇酸甲酯 强酸性树脂 酯化 

分 类 号：TQ426.94[化学工程]