高校化学工程学报2012，Vol.26Issue(4)：624-628,5.
钼钒磷杂多酸有机盐催化下苯与双氧水羟基化制苯酚的动力学
Kinetics of Hydroxylation of Benzene to Phenol with Hydrogen Peroxide over Organic Molybdovanadophosphoric Heteropolyacid Salt Catalysts
摘要
Abstract
A serial of organic molybdovanadophosphoric heteropolyacid salt catalysts with different organic carbon-chain lengths were prepared by a facile acid-base neutralization method, and then a comparison was made for their catalytic activities in the reaction of hydroxylation of benzene to phenol with hydrogen peroxide as oxidant The results show that the triethylamine molybdovanadophosphoric heteropolyacid salt (TEA-PMoV) has the highest catalytic activity for the hydroxylation reaction. Additionally, the intrinsic kinetics of the hydroxylation of benzene to phenol with hydrogen peroxide over TEA-PMoV was systematically investigated, from which both the orders of reaction with respect to benzene and hydrogen peroxide were found to be first order and the activation energy is 93.3 kJ-mol"1, when the internal and external diffusion limitations are excluded. The obtained kinetic data are essential for the process development of the hydroxylation of benzene with hydrogen peroxide over the TEA-PMoV catalyst.关键词
钼钒磷杂多酸有机盐/苯/苯酚/羟基化/本征动力学Key words
organic molybdovanadophosphoric heteropolyacid salt/ benzene/ phenol/ hydroxylation/intrinsic kinetics分类
化学化工引用本文复制引用
徐文俊,景丽,张富民,钟依均,朱伟东..钼钒磷杂多酸有机盐催化下苯与双氧水羟基化制苯酚的动力学[J].高校化学工程学报,2012,26(4):624-628,5.基金项目
国家自然科学基金项目(20806075) （20806075）
浙江省自然科学基金杰出青年团队项目(R4080084)资助. （R4080084）
