SO42-/TiO2-SnO2固体超强酸无溶剂催化合成季戊四醇硬脂酸酯  

Synthesize pentaerythritol stearate catalyzed by SO42-/TiO2-SnO2solid superacid without solvent

作　　者：郑晓凤[1] 于洋[1] 刘海舰[1] Zheng Xiaofeng;Yu Yang;Liu Haijian(School of Chemistry and Chemical Engineering, Qufu Normal University, Shandong, 273165)

机构地区：[1]曲阜师范大学化学与化工学院,山东273165

出　　处：《当代化工研究》2016年第7期50-51,共2页Modern Chemical Research

基　　金：山东省优秀中青年科学家科研奖励基金项目(批准号BS2014CL015;BS2014NJ015)

摘　　要：在SO42-/TiO2-SnO2固体超强酸催化下，采用无溶剂法研究季戊四醇硬脂酸酯的合成，分别考察催化剂用量、反应物摩尔比、反应时间和反应温度等对酯化反应的影响。结果表明，催化剂的用量为反应物总质量的2.0%，季戊四醇和硬脂酸的摩尔比为1:4.4，反应温度为190℃，反应时间为4h时，季戊四醇硬脂酸酯的产率达89.4%。对产物进行了1HNMR、MS表征。In this paper, under the catalysis of SO42 -/TiO2-SnO2 solid super acid, it adopts the no-solvent method in the research of the synthesis of pentaerythritol stearate, besides, it respectively takes investigation of the influence of catalyst dosage, reactant molar ratio, reaction time and reaction temperature on the esterification reaction. Results show that the dosage of the catalyst covers 2.0% of the total mass of reactants, molar ratio of pentaerythritol and stearic acid is 1:4. 4, reaction temperature is 190℃, reaction time is 4 h and productivity of pentaerythritol stearate reaches to 89.4%, besides, it takes 1HNMR and MS representations of the products.

关 键 词：季戊四醇 硬脂酸 季戊四醇硬脂酸酯 固体超强酸 无溶剂条件 

分 类 号：T[一般工业技术]