增塑剂邻苯二甲酸二丁酯的绿色合成  

Green synthesis of plasticizer dibutyl phthalate

作　　者：柴凤兰[1] 徐海云[1] 杨诗佳 

机构地区：[1]河南化工职业学院,河南郑州450042 [2]河南省有色金属地质矿产局,河南郑州450016

出　　处：《应用化工》2014年第3期465-467,共3页Applied Chemical Industry

基　　金：河南省高等学校自然科学研究基金资助项目(2011A150009)

摘　　要：用一水合硫酸氢钠催化邻苯二甲酸酐和正丁醇酯化反应,合成邻苯二甲酸二丁酯(DBP),最佳反应条件为:正丁醇与苯酐的摩尔比为2.5∶1,催化剂与苯酐摩尔比为1∶500,反应温度195℃,反应2 h,酯化率98.5%,DBP的产率96%,纯度>99.8%;苯酐消耗定额<0.6,正丁醇消耗定额<0.7。催化剂安全、经济,不污染环境,符合绿色合成化学原则。The dibutyl phthalate was synthesized with NaHSO4 · H2O as catalyst by esterification of phthalic anhydride and n-butanol.The optimal reaction parameters for the process were obtained as follows：the molar ratio of n-butanol to phthalic anhydride was 2.5 ∶ 1,and that of the catalyst to phthalic anhydride was 1∶500,the reaction temperature was 195 ℃ and the reaction time was 2h,esterification rate was up to 98.5％.The yield for dibutyl phthalate was 96％,the fincness for dibutyl phthalate was ＞ 99.8％.The consumption quota of phthalic anhydride was ＜ 0.6 and that of n-butanol was ＜ 0.7.The catalyst was safe,economic and no environmental pollution,which agrees with the principles of green synthesis chemistry.

关 键 词：增塑剂 邻苯二甲酸二丁酯 邻苯二甲酸酐 绿色合成 

分 类 号：TQ414[化学工程]