用SO_4(2-)/FeZnZSM催化剂液相合成乙酸丁酯  

Study on SO 4 2- /FeZnZSM as Catalyst to Catalysis Butyl Acetate

作　　者：戴玉梅[1] 林深[1] 黄颖[1] 陈守正[1] 

机构地区：[1]福建师范大学化学系

出　　处：《福建师范大学学报（自然科学版）》1999年第1期61-66,共6页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省自然科学基金

摘　　要：用浸渍法混合负载铁、锌、硫酸，研制出一种ＳＯ４２－／ＦｅＺｎＺＳＭ分子筛催化剂，用正交试验法分别探讨了负载浓度、焙烧温度、酸醇摩尔比以及催化剂用量对催化活性的影响，用ＩＣＰ、ＸＲＤ、ＤＴＡ、ＴＧ、ＳＳＡ、ＮＨ３－ＴＰＤ等技术对催化剂的物化性能进行了表征．结果表明：研制出的ＳＯ４２－／ＦｅＺｎＺＳＭ催化剂对酯化反应具有良好的催化活性，选择性达１００％．在１２２℃，酸醇摩尔比为１∶１．０８时，反应３小时后，乙酸的转化率达９７．６３％．因催化剂制备成本低，催化剂热稳定性好，机械强度高，可望有开发应用价值．SO 4 2- /FeZnZSM is obtained by soaking to bear ferri, zinc and sulfuric on the carrier of ZSM 5. The effects of the concentration of soaking, roasting temperatures, the ratio of reactants and the amount of the catalyst were also investigated through orthorhombic experiment. Meanwhile the catalyst is characterized by ICP,XRD,DTA,TG,SSA,NH 3 TPD.The results indicate that SO 4 2- /FeZnZSM have good catalysis activity to esterification in that the selectivity can reach 100%. The rate of the transforming of acetic acid can attain 97 63% after 3 hours reaction when the ratio of acetic acid to n butylalcohol is 1∶1 08 under 122℃. Thanks to its low cost of production, high stability and strong mechanical intensity, the catalyst enjoys a promising future of exploitation and application.

关 键 词：ZSM 酯化反应 乙酸丁酯 液相合成 分子筛 催化剂 

分 类 号：O623.624.1[理学—有机化学]