摘要
对漆酚 FeCl3 SnCl4聚合物(UR Fe Sn)进行了红外光谱分析,结果显示,在UR Fe Sn聚合物中存在M—O(Fe—O、Sn—O)键。并用聚合物UR Fe Sn作催化剂催化醋酸与乙二醇单乙醚(EGEE)直接酯化合成乙二醇单乙醚醋酸酯(EGEEA),选择了最佳反应条件,考察了UR Fe Sn催化剂的重复使用效果。实验表明,在UR Fe Sn催化剂作用下,醋酸转化率达到94%以上,EGEEA选择性达到91%,该催化剂具有重复催化效果,UR Fe Sn重复催化酯化反应时,EGEEA的选择性保持在87%以上,且催化活性能够再生。
Polymer compound of urushiolFe3+Sn4+(URFeSn) was analysed by IR spectrum.Result shows that there is M-O(FeO,SnO) bond in the urushiolFeSn polymer.It is considered that the action center of catalyst is Mn+(Fe3+,Sn4+).Ethylene glycol monoethylether acetate(EGEEA) was synthesized in the presence of polymer catalysts of URFeSn compound.Effects of reactants ratio,amounts of the catalyst,and reaction temperature are discussed,and optimum reaction condition was selected,to give the following results:conversion of acetic acid over 94%,selectivity of EGEEA 91%,yield of EGEEA 86%,and the catalyst can be regenerated and reused,keeping selectivity of EGEEA between 87% and 91%.
出处
《林产化学与工业》
EI
CAS
CSCD
2003年第1期71-74,共4页
Chemistry and Industry of Forest Products
