由三氯丙烷粗馏分制取三醋酸甘油酯  

STUDING ON SYNTHESIS OF GLYCERYL TRIACETATE FROM CRUDE FRACTION OF TRICHLOROPROPANE

作　　者：邓克俭[1] 陆峰平 沈睿曼[1] 杨有清[1] 沈雨生[1] 

机构地区：[1]中南民族学院化学系,湖北武汉430073 [2]江苏宜兴凯欣化工有限公司,江苏宜兴214262

出　　处：《化学研究与应用》2000年第1期81-84,共4页Chemical Research and Application

摘　　要：Synthesis of glyceryl triacetate from trichloropropane(TCP) has been accomplished.It is a reaction of replacement and has a keen competition——eliminatin reaction.How to increase replacement and decrease elimination are studied in detail,with regard to for example,temperaure, solvent,catelyst,the distriture of reactant,and so on.We come to the conclusion that under these conditions of acetic acid as the solvent,the concentration of the reactant has no remarkable influence over the reaction of replacement,a little excess of TCP in the reactants exert advantage for separating products,no catelyst being required,from temperature 160℃,time 6h to 180℃,4h. The production rate increases from 59.1% to 77.4%and the elimination rate decreactions from 40.9% to 22.6%.Synthesis of glyceryl triacetate from trichloropropane(TCP) has been accomplished.It is a reaction of replacement and has a keen competition——eliminatin reaction.How to increase replacement and decrease elimination are studied in detail,with regard to for example,temperaure, solvent,catelyst,the distriture of reactant,and so on.We come to the conclusion that under these conditions of acetic acid as the solvent,the concentration of the reactant has no remarkable influence over the reaction of replacement,a little excess of TCP in the reactants exert advantage for separating products,no catelyst being required,from temperature 160℃,time 6h to 180℃,4h. The production rate increases from 59.1% to 77.4%and the elimination rate decreactions from 40.9% to 22.6%.

关 键 词：三氯丙烷 三醛酸甘油酯 置换反应 粗馏分 

分 类 号：O623.624.2[理学—有机化学] TQ225.242[理学—化学]