对甲苯磺酸催化乙二醇合成1,4-二氧六环  

Catalytic synthesis of 1,4dioxane from ethanediol using p-toluene sulphonic acid as the catalyst

作　　者：马荣萱[1] 李继忠[1] 

机构地区：[1]延安大学化学化工学院化学反应工程省级重点实验室,陕西延安716000

出　　处：《工业催化》2007年第3期59-61,共3页Industrial Catalysis

摘　　要：以对甲苯磺酸作催化剂,对乙二醇脱水制备1,4-二氧六环的反应进行研究。考察了催化剂用量、反应时间和反应温度等因素对收率的影响,得出最佳反应条件:催化剂用量为乙二醇质量的4.3%,反应时间50 min,收率可达84.82%。1,4-dioxane was synthesis by dehydration of ethanediol using p-toluene sulphonic acid as the catalyst. Influence of catalyst dosage, reaction temperature and reaction time on the yield was investigated. The optimum reaction condition was as follows： catalyst dosage = 4.3% of the amount of ethanediol, reaction time 50 min. 1,4-dioxane yield of 84.82% was obtained under the optimum condition.

关 键 词：对甲苯磺酸 催化 乙二醇 1 4-二氧六环 

分 类 号：O643.36[理学—物理化学] O623.413[理学—化学]