硫酸钛催化酯化反应动力学研究

The Kinetics of Esterification on Titanium Sulfate

关键词:  酯化反应  非等温  动力学

Key words:  esterification  non-isothermal  kinetics

摘要:

根据硫酸钛催化合成乙酸正丁酯反应的特点导出非等温变体积条件下的反应速率方程,并导出用于计算动力学参数的理论公式。在此基础上对不同实验条件下的多组实验数据进行动力学处理,结果表明该反应服从二级反应动力学模型,表观活化能为197.94kJ·mol^-1,指前因子为4.2651×10²⁵ dm³·mol^-1·min^-1.

Abstract:

According to the characteristics of synthesis of n-butylacetate catalysed by Titanium sulfate,the equation of reaction rate is set up under non-isothermal and volume-varying conditions.Adynamic method for calculating the kinetic parameters is also developed.By kinetic calculation,it serves the kinetics model of second order reaction and the apparent activation energy is 197.94 kJ·mol^-1, and the pre-exponential factor is 4.2651×10²⁵ dm³·mol^-1·min^-1.