| Sn改性Hβ分子筛催化顺酐酯化 |
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| 引用本文： | 张静静,高春光,赵永祥.Sn改性Hβ分子筛催化顺酐酯化[J].工业催化,2015,23(12):980-985. |
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| 作者姓名： | 张静静 高春光 赵永祥 |
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| 作者单位： | 山西大学化学化工学院 精细化学品教育部工程研究中心，山西 太原 030006 |
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| 基金项目： | 国家自然科学基金（21073114）资助项目 |
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| 摘 要： | 采用离子交换法对Hβ分子筛进行骨架外Sn改性制得Sn-Beta分子筛,应用于顺丁烯二酸酐与正丁醇的酯化反应,并与Hβ分子筛进行对比。研究结果表明,Hβ分子筛的催化性能优于Sn-Beta分子筛,顺丁烯二酸酐转化率达98.0%,马来酸二丁酯产率达73.9%。采用X射线粉末衍射、N2物理吸附、傅里叶红外光谱、紫外-可见漫反射光谱和NH3程序升温脱附等技术对分子筛的物化性质进行表征,结果表明,Hβ分子筛比表面积大,孔容和孔径较大,酸量较多,有利于酯化反应的进行。
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| 关 键 词： | 催化化学 Hβ分子筛 Sn-Beta分子筛 顺酐酯化 马来酸二丁酯 |
Catalytic performance of Sn modified Hβ zeolite for maleic anhydride esterification |
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| Zhang Jingjing,Gao Chunguang,Zhao Yongxiang.Catalytic performance of Sn modified Hβ zeolite for maleic anhydride esterification[J].Industrial Catalysis,2015,23(12):980-985. |
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| Authors: | Zhang Jingjing Gao Chunguang Zhao Yongxiang |
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| Affiliation: | Engineering Research Center for Fine Chemicals of Ministry of Education, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, Shanxi, China |
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| Abstract: | Sn-Beta zeolite was prepared by ion exchange method for modifying zeolites Hβ with Sn.The catalytic performance of Hβ and Sn-Beta zeolites for the esterification of maleic anhydride with n-butyl alcohol was investigated.The results showed that the catalytic performance of Hβ zeolite was better than that of Sn-Beta zeolite.The conversion of maleic anhydride and the yield of dibutyl maleate reached 98.0% and 73.9%,respectively.The structure and properties of zeolites were characterized by XRD,N2 physical adsorption-desorption,NH3-TPD,FT-IR and DRUV-Vis.The results indicated that Hβ zeolite has larger specific surface area,pore volume and pore diameter,and higher total acid amount,which promoted the esterification reaction. |
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| Keywords: | catalytic chemistry H&beta zeolite Sn-Beta zeolite maleic anhydride esterification dibutyl maleate |
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