活性炭固载三氯化钕非均相催化合成乙酸环己酯  

Synthesis of Cyclohexyl Acetate Heterogeneous Catalyzed by Neodymium Chloride Supported on Activated Carbon

作　　者：刘春生[1] 何淼[1] 周海霞[1] 罗根祥[1] 

机构地区：[1]辽宁石油化工大学石油化工学院

出　　处：《稀土》2006年第6期88-90,共3页Chinese Rare Earths

摘　　要：以活性炭固载三氯化钕为非均相催化剂,对环己醇与乙酸酐之间的酰化反应进行了研究,考察了催化剂用量、醇酐摩尔比、反应时间对乙酸环己酯收率的影响。结果表明,活性炭固载三氯化钕有着较好的催化活性,当乙酸酐的加入量为0.1 m o l,醇酐摩尔比为1.1∶1时,催化剂质量为0.25g,反应30m in后,乙酸环己酯收率可达到92.2%,且催化剂重复使用5次仍保持较高活性,所得产品无色透明,具有很高的纯度。产品经折光率和红外光谱进行了表征。Acylation of cyclohexanol with acetic anhydride was studied by using neodymium chloride supported on activated carbon as heterogeneous catalyst. The effect of different factors such as the amount of catalyst,the mole ratio of cyclohexanol to acetic anhydride and reaction time on the yield of cyclohexyl acetate were carefully studied. The results showed that neodymium chloride supported on activated carbon has a good catalytic activity. The best of reaction condition are as follows ： when the amount of acetic anhydride was 0.1 mol, the ratio of cyclohexanol to acetic anhydride was 1.1,the amount of neodymium chloride supported on activated carbon as catalyst was 0. 25g. Through reacting 30 min ,the yield of cyclohexyl acetate reached 92.2%. The catalyst can be repeatedly used. The product is colorless and transparent. The product was characterized by refractive index and IR.

关 键 词：乙酸环己酯 非均相 活性炭固载三氯化钕 催化合成 酰化反应 

分 类 号：O614.335[理学—无机化学] O643.36[理学—化学]