硅钨酸催化合成柠檬酸三丁酯的研究  

THE SYNTHESIS OF TRIBUTYL CITRATE CATALYZED BY TUNGSTOSILICIC ACID

作　　者：吴茂祥[1] 高冬寿[1] 李定[1] 罗军华[1] 王燕茗[1] 陈长章[1] 

机构地区：[1]中国科学院福建物质结构研究所,福州350002

出　　处：《精细石油化工》1999年第6期23-25,共3页Speciality Petrochemicals

基　　金：福建省自然科学基金

摘　　要：考察了催化剂用量、酸醇比、反应时间、反应温度对硅钨酸均相催化酯化合成柠檬酸三丁酯反应的影响 ,对合成的产品进行了红外光谱分析及纯度的测定。在柠檬酸用量为 2 1 g,正丁醇为 55m L ,催化剂量为 0 .3 g,反应时间 2 .5h,反应温度 1 4 5℃的优化条件下 ,柠檬酸三丁酯收率为 98.3 %。Homogenous catalytic synthesis of tributyl citrate catalyzed by tungstosilicic acid was studied. The effects of reaction conditions were discussed, such as the quantity of catalyst, the ratio of the reactants, reaction time and the reaction temperature. The product was detected by IR spectra. The most suitable conditions for the reaction were as follows: citrate 21 g, butyl alcohol 55 mL, tungstosilicic acid 0.3 g, reaction time 2.5 h, reaction temperature 145 ℃, the yield of tributyl citrate was over 98.3%.

关 键 词：增塑剂 柠檬酸三丁酯 酯化 杂多酸 硅钨酸 

分 类 号：TQ414.99[化学工程]