南京林业大学学报(自然科学版)2012,Vol.36Issue(1):97-100,4.
强酸性离子交换树脂催化下硼酸三甲酯合成反应的动力学研究
Kinetics of synthesis of trimethyl borate on laden lithium chloride acid ion-exchange resin
摘要
Abstract
The kinetics of the reversible reaction between boronic acid and methanol was investigated by using the self-made strong acid cation exchange resin loaded with lithium chloride as the catalyst. A method was established for fitting parameters of reversible reaction kinetic model derived from the integration method, and the relationship between pre-ex-ponential constants and concentration of catalyst was expressed by power function. According to the variation of trimethyl borate yield with time, temperature and the amount of catalyst, the kinetic model was fitted by linear method. The equation of synthesis kinetics of trimethyl borate by inhomogeneous catalysis was showed as:rA =499. 4C0.38 cat exp(-31 920/RT)CACB - 397.7C0.08 cat exp( -29 780/RT)CRCS.关键词
硼酸三甲酯/动力学/离子交换树脂/氯化锂Key words
trimethyl borate/ kinetics/ ion-exchange resin/ lithium chloride分类
化学化工引用本文复制引用
李小保,窦伟,叶菊娣,马耀进,姚春才..强酸性离子交换树脂催化下硼酸三甲酯合成反应的动力学研究[J].南京林业大学学报(自然科学版),2012,36(1):97-100,4.基金项目
江苏省高校优势学科建设工程资助项目 ()