相转移催化合成乙酸苄酯宏观动力学研究  

Research on Macro-kinetics of Phase Transfer Catalytic Reaction for Benzyl Acetate

作　　者：张国华[1] 

机构地区：[1]江苏技术师范学院化学与环境工程学院,江苏常州213001

出　　处：《江苏技术师范学院学报》2012年第2期59-62,共4页Journal of Jiangsu Teachers University of Technology

摘　　要：研究了氯化苄与乙酸钠在相转移催化剂苄基三乙基氯化铵作用下合成乙酸苄酯的宏观动力学。研究中固定相转移催化剂用量,并使乙酸钠大量过量以维持反应体系中乙酸钠浓度为定值。在50～60℃的温度下进行实验。实验结果表明,反应对氯化苄为1级,反应表观活化能为36.4kJ/mol。The macro-kinetics of phase transfer catalytic reaction for benzyl acetate from benzyl chloride and sodium acetate with benzyltriethylammonium chloride as catalyst was researched. In the kinetics experiments, the concentration of phase transfer catalyst benzyltriethylammonium was keep unchanged, and excess sodium acetate was used to keep constant acetate concentration by dissolution equilibrium. The kinetics experiments were carried out to obtained the reaction order of benzyl chloride at 50-60℃. The results indicated that the reaction orders for benzyl chloride was 1, and the activation energy was 36.4kJ/mol.

关 键 词：氯化苄 乙酸钠 苄基三乙基氯化铵 乙酸苄酯 宏观动力学 

分 类 号：TQ225.24[化学工程—有机化工]