Amberlyst-36树脂催化气相合成乙酸乙酯的研究  

Vapor phase synthesis of ethyl acetate catalyzed by strong acid resin Amberlyst-36

作　　者：李军 毛震波 张华西 陈晓华 温少桦 LI Jun;MAO Zhen-bo;ZHANG Hua-xi;CHEN Xiao-hua;WEN Shao-hua(Southwest Research and Design Institute of Chemical Industry Co.,Ltd.,Chengdu 610225,China)

机构地区：[1]西南化工研究设计院有限公司,四川成都610225

出　　处：《天然气化工—C1化学与化工》2018年第4期53-56,共4页Natural Gas Chemical Industry

摘　　要：以Amberlyst-36强酸性离子交换树脂为催化剂,气相催化乙酸和乙醇酯化合成乙酸乙酯,考察了气化温度、反应温度、原料配比、进料速度、催化剂装填量对反应的影响。确定最佳的反应条件为:气化温度130℃、反应温度115℃、催化剂装填量31.5m L、醋酸乙醇的物质的量比1.47∶1、进料速度3.4m L/min。在此最佳工艺条件下,乙醇转化率达93.5%以上,乙酸乙酯选择性100%,时空收率达3114.8g/(L·h)。Ethyl acetate was synthesized by evapor phase esterification of acetic acid and ethanol with strong acid resin Amberlyst-36 as catalyst,and the effects of gasification and reaction temperatures,the ratio of reactants,feed rate and catalyst loading on the reaction were investigated.The optimum process conditions were determined as follows:the gasification temperature of 130℃,the reaction temperature of 115℃,the catalyst loading of 31.5mL,the ratio of acetic acid to ethanol of 1.47:1,and the feed rate of 3.4mL/min.Under above conditions,the conversion of ethanol,the selectivity of ethyl acetate and the spactime yield were above 93.5%,100%and 3114.8g/(L*h),respectively.

关 键 词：气相酯化 强酸树脂 乙酸乙酯 醋酸 乙醇 

分 类 号：TQ225.123[化学工程—有机化工]