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增塑剂邻苯二甲酸二丁酯的绿色合成
引用本文:柴凤兰,徐海云,杨诗佳.增塑剂邻苯二甲酸二丁酯的绿色合成[J].陕西化工,2014(3):465-467.
作者姓名:柴凤兰  徐海云  杨诗佳
作者单位:[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
基金项目: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2h,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.

关 键 词:增塑剂  邻苯二甲酸二丁酯  邻苯二甲酸酐  绿色合成

Green synthesis of plasticizer dibutyl phthalate
CHAI Feng-lanHenan Vocational College of Chemical Technology,Zhengzhou,China XU Hai-yunHenan Vocational College of Chemical Technology,Zhengzhou,China YANG Shi-jia.Green synthesis of plasticizer dibutyl phthalate[J].Applied Chemical Industry,2014(3):465-467.
Authors:CHAI Feng-lanHenan Vocational College of Chemical Technology  Zhengzhou  China XU Hai-yunHenan Vocational College of Chemical Technology  Zhengzhou  China YANG Shi-jia
Affiliation:CHAI Feng-lan(Henan Vocational College of Chemical Technology ,Zhengzhou 450042,China) XU Hai-yun(Henan Vocational College of Chemical Technology ,Zhengzhou 450042,China) YANG Shi-jia(Henan Provincial Non-Ferrous Metals Geological and Mineral Resources Bureau,Zhengzhou 450016, China)
Abstract: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.
Keywords:plasticizer  dibutyl phthalate  phthalic anhydride  green synthesis
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