摘要
以甲苯为原料,采用高锰酸钾氧化法制备苯甲酸。考察了原料摩尔比、催化剂种类、催化剂用量、反应时间等对苯甲酸产率的影响。研究结果表明,苯甲酸制备的最佳条件是:原料摩尔比为1:2. 4,催化剂四丁基溴化铵为0. 75g,反应时间为180min,苯甲酸的产率可达到71. 91%。
Toluene raw material, prepared by potassium permanganate oxidation of benzoic acid. The effects of molar ratio of raw materials, catalyst type, amount of catalyst, reaction time on the yield of benzoic acid were investigated. The results showed that the optimum conditions for the preparation of benzoic acid are ： the molar ratio of raw material is 1 ： 2.4, with 0. 75g Tetrabutylammoninm bromide as catalyst and the reaction time is 180 min,the yield of benzoic acid can reach 71.91%.
作者
高思
郑可心
葛文璐
周迎春
Gao Si;Zheng Ke-xin;Ge Wen-lu;Zhou Ying-chun(College of Chemical and Environment Engineering,Liaoning University of Technology,Liaoning Jinzhou 121001)
出处
《江西化工》
2018年第5期105-106,共2页
Jiangxi Chemical Industry
关键词
防腐剂
苯甲酸
制备
氧化法
Preservatives
Benzoic acid
Preparation
Oxidation style
