日用化学工业2011，Vol.41Issue(3)：191-193,3.
SO42-/TiO2-Al2O3催化合成季戊四醇四异硬脂酸酯
Synthesis of pentaerythritol tetraisostearate catalyzed by SO4 2-/TiO2 _ Al2O3
摘要
Abstract
Using self- prepared SO42-/TiO2 -Al2O3 solid superacid as catalyst, pentaerythritol and isostearic acid were esteritied to synthesize pentaerythritol tetraisostearate.Effects of factors, such as molar ratio of isostearic acid to pentaerythritol, the dosage of catalyst, reaction temperature, reaction time on the results of esteritication were investigated.The optimal conditions were determined as: n (isostearic acid ) : n(pentaerythritol) = 4.3: 1, the dosage of the catalyst w = 0.060％ of total mass of the reactants, reaction time 10 h and reaction temperature 230 ℃.The reaction products were characterized by the FTIR.Results showed that SO42-/TiO2 -Al2O3 solid superacid performs good catalytic activity with high reaction selectivity in the process of synthesis of pentaerythritol tetraisostearate.The esterifying conversion achieves more than 97％, and the catalyst could be repeatedly used for five times without significant declining of its catalytic activity.关键词
化妆品添加剂/季戊四醇四异硬脂酸酯/固体超强酸/酯化反应Key words
additives of cosmetics/ pentaerythritol tetraisostearate/ solid superacid/ esterification分类
化学化工引用本文复制引用
万庆梅,金一丰,王胜利,王新荣..SO42-/TiO2-Al2O3催化合成季戊四醇四异硬脂酸酯[J].日用化学工业,2011,41(3):191-193,3.基金项目
浙江省级新产品试制计划资助项目(2009D60SA620201) （2009D60SA620201）
