摘要
采用1-丁基磺酸-3-甲基咪唑三氟甲烷磺酸盐催化对苯二甲酸二甲酯(DMT)与1,4-丁二醇(BDO)进行酯交换反应,研究了催化剂的用量、酯醇摩尔比、反应时间、反应温度等因素对酯交换反应的影响。得出最佳工艺条件:使用1-丁基磺酸-3-甲基咪唑三氟甲烷磺酸盐离子液体作为催化剂,酯醇摩尔比是1:2.2,反应温度是150℃,反应时间是30min,酯交换率是97.0%。并对产物对苯二甲酸双羟丁二酯(BHBT)红外光谱图进行解析,结果与参考文献对比,表明产物是BHBT。
The ester exchange reaction between dimethyl terephthalate(DMT)and 1,4-butanediol(BDO)was catalyzed by 1-butylsulfonic acid-3-methylimidazolium trifluoromethanesulfonate.The effects of catalyst dosage,ester alcohol molar ratio,reaction time,reaction temperature,and other factors on the ester exchange reaction were studied.The optimal process conditions were determined as follows:1-butylsulfonic acid-3-methylimidazolium trifluoromethanesulfonate ionic liquid was used as the catalyst,the ester alcohol molar ratio was 1:2.2,the reaction temperature was 150 ℃,the reaction time was 30 min,and the ester exchange rate was 97.0%.And the infrared spectrum of the product BHBT was analyzed,and the results were compared with the reference literature,indicating that the product is BHBT.
作者
黄明刚
徐淳
李国春
李夏蕾
甘巧
HUANG Minggang;XU Chun;LI Guochun;LI Xialei;CAN Qiao(Sichuan Vocationaland Technical College of Chemical Industry,Luzhou 646300,Sichuan,China;Key Laboratory of Fine Chemical Application Technology,Luzhou 646300,Sichuan,China)
出处
《四川化工》
2025年第2期1-4,19,共5页
Sichuan Chemical Industry
基金
泸州市科学技术和人才工作局应用基础研究项目(2021-JYJ-91)。
