摘要
以亚硫酸铵为磺化剂,对乙醇胺法制备牛磺酸的磺化反应进行了表观动力学研究。根据反应物浓度的变化,用数学模型拟合出牛磺酸浓度与时间的关系,建立起磺化反应的表观动力学方程。结果表明,在348.15到368.15K的温度范围内,牛磺酸的合成反应为2级反应,其表观活化能为80.689 kJ/mol,指前因子为(3.285 1E+13)mL/(mol.h)。通过对此反应动力学的研究,可以指导乙醇胺法合成牛磺酸的工程设计和工业生产,从而为设计和生产提供最优方案和控制条件。
Using ammonium sulfite as sulfonating agent, the apparent kinetics of the sulphonating reaction for synthesizing taurine by ethanolamine esterification method was studied. According to the change of reactants concentration, the relationship between the concentration of the reactant and the reactive time was fitted by mathematical model, and the apparent kinetics equation was set up. The conclusion shows that the synthesis reaction order of taurine is 2 at 348.15-368.15 K, the apparent activation energy and the pre-exponential factor are 80. 689 kJ/mol and （3. 285 1E ＋ 13 ） mL/（ mol · h）, respectively. The study of reaction kinetics can provide the optimal solution and control conditions for the engineering design and industrial production of taurine synthesized by ethanolamine esterification method.
出处
《化学工程》
CAS
CSCD
北大核心
2013年第4期66-68,78,共4页
Chemical Engineering(China)
基金
河南省郑州科技局科技攻关基金项目(0910SGYG23256-6)
关键词
牛磺酸
亚硫酸铵
乙醇胺酯化法
反应动力学
taurine
ammonium sulfite
ethanolamine esterification method
reaction kinetics
