石油化工高等学校学报2011，Vol.24Issue(1)：48-51,58,5.DOI:10.3696/j.issn.1006-396X.2011.01.012
Nb-SBA-15的直接合成及其催化氧化苯乙烯性能研究
Direct Synthesis of Nb-SBA-15 and the Catalytic Oxidation Performance of Styrene
白向向 1沈健 1魏田升1
作者信息
- 1. 辽宁石油化工大学石油化工学院,辽宁抚顺,113001
- 折叠
摘要
Abstract
Niobiumcontaining mesoporous molecular sieves Nb-SBA-15 were synthesized by using Nb2O5 as niobium source.The molecular sieves were characterized by means of small angle XRD, BET, FT-IR,DTA.The results show that with niobium loaded on SBA-15, it possess characteristic structure of SBA-15.The (Z)- Nb-SBA-15 molecular sieve catalyst has a high catalytic activity for the oxidition of styrene, at the temperature 70 ℃, n(styrene)/n(H2O2 )/n(acetone)=1∶ 2∶ 2, the quantity of catalyst was 10.0％ of the raw material, reaction time 10 h, the conversion of styrene is up to 43.21％, the selectivity of benzaldehyde is up to 94.32 ％, and the catalyst has good stability, is a preferred solid acid catalyst.关键词
(Z)-Nb-SBA-15/催化氧化/苯乙烯/苯甲醛分类
化学化工引用本文复制引用
白向向,沈健,魏田升..Nb-SBA-15的直接合成及其催化氧化苯乙烯性能研究[J].石油化工高等学校学报,2011,24(1):48-51,58,5.
