助剂对环氧乙烷氢甲酯化反应性能的影响  

Effect of Additives on the Performance of Ethylene Oxide Hydroesterification Reaction

作　　者：赵金波 Zhao Jinbo(College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005;Institute of Sinopec Maoming Petrochemical Company,Maoming 525000;Guangdong Provincial Key Laboratory of Advanced Green Lubricating Materials,Maoming 525000,China)

机构地区：[1]厦门大学化学化工学院,福建厦门361005 [2]中国石化茂名分公司研究院,广东茂名525000 [3]广东省先进绿色润滑材料企业重点实验室,广东茂名525000

出　　处：《广东化工》2023年第16期1-4,共4页Guangdong Chemical Industry

摘　　要：3-羟基丙酸甲酯是制备1,3-丙二醇的关键原料,主要由环氧乙烷、CO和甲醇通过氢甲酯化反应制得。本文考察了不同反应条件对Co_(2)(CO)_(8)催化环氧乙烷氢甲酯化反应的影响,并通过在催化体系中添加不同含N助剂,考察了多种含N助剂对Co_(2)(CO)_(8)催化性能的影响。研究表明,吡啶、咪唑和三乙胺表现出了良好促进作用。在相同的反应条件下,环氧乙烷的转化率可以从25.7%提高到65.5%,3-羟基丙酸甲酯选择性可以从92.2%提高到97.7%。Methyl 3-hydroxypropanoate is the key raw material for the preparation of 1,3-propanediol,which is mainly prepared by the hydroesterification of ethylene oxide,CO and methanol.This article investigates the effects of different reaction conditions on the catalytic performance of Co_(2)(CO)_(8) in the hydroesterification of ethylene oxide.By adding different N-containing additives to the catalytic system,the effects of various N-containing additives on the catalytic performance of Co_(2)(CO)_(8) were investigated.Research has shown that pyridine,imidazole,and triethylamine exhibit good promoting effects.Under the same reaction conditions,the conversion of ethylene oxide can be increased from 25.7%to 65.5%,and the selectivity of methyl 3-hydroxypropanoate can be increased from 92.2%to 97.7%.

关 键 词：环氧乙烷 氢甲酯化 羰基钴 助剂 3-羟基丙酸甲酯 

分 类 号：TQ[化学工程]