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Chemcial Industry and Engineering 2009, Vol. 26 Issue (6) :500-505    DOI:
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Application of Supported WO_3 Attapulgite Catalyst in Epoxidation of Cyclopentene
LAI Shi-quan,YUE Li,XUE Xiao-qian,CHEN Ying,ZHAO Xue-fei,GAO Li-juan(School of Chemical Engineering,University of Science and Technology Liaoning,Anshan 114051,Liaoning Province,China)
(School of Chemical Engineering,University of Science and Technology Liaoning,Anshan 114051,Liaoning Province,China

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Abstract A supported WO_3 attapulgite catalyst(WO_3/AT)was prepared using impregnation method with attapulgite clay(AT) as catalyst supporter and ammonium tungstate as tungsten precursor,and its structure was characterized by FT-IR and XRD.And then using 30%(mass percent) H_2O_2 as oxygen resource and tert-butyl alcohol(TBA) as solvent,its catalytic activity was researched in the epoxidation reaction of cyclopentene(CPE).The experimental results showed that WO_3 was homogeneously dispersed on the surface of attapulgite.Under the conditions of(30% (mass percent) H_2O_2)/(CPE)=2.2 and V(TBA)/V(CPE)=10,the suitable technological conditions for the reaction: reaction temperature was 308 K, reaction time was 24 h,catalyst was 0.3 g/mL(CPE),the loading content of WO_3 was 40.0%(mass percent),the calcination temperature and time of the catalyst was 823 K and 2 h respectively.Under these conditions,the yield of 1,2-epoxycyclopentane(CPO) was 40.2%,the conversion of CPE was 92.1%.The catalyst exhibited a good catalytic activity in the epoxidation reaction of CPE.
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Received 2009-11-15; published 2009-11-15
Cite this article:   
LAI Shi-quan,YUE Li,XUE Xiao-qian,CHEN Ying,ZHAO Xue-fei,GAO Li-juan.Application of Supported WO_3 Attapulgite Catalyst in Epoxidation of Cyclopentene[J]  Chemcial Industry and Engineering, 2009,V26(6): 500-505
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