NbOx/SiO2 in the gas-phase Beckmann rearrangement of cyclohexanone oxime to ε-caprolactam: Influence of calcination temperature, niobia loading and silylation post-treatment
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- 作者：M.M. Maronnaa ; b ; 1 ; marius.maronna@tu-dortmund.de" class="auth_mail" title="E-mail the corresponding author ; E.C. Kruissinka ; R.F. Partona ; J.T. Tingea ; F. Soulimanic ; B.M. Weckhuysenc ; W.F. Hoelderichd ; 1
- 关键词：Gas-phase Beckmann rearrangement ; Cyclohexanone oxime to ε-caprolactam ; Amorphous niobia on silica catalyst ; Raman spectroscopy ; Silylation post-treatment
- 刊名：Applied Catalysis B: Environmental
- 出版年：2016
- 出版时间：15 May 2016
- 年：2016
- 卷：185
- 期：Complete
- 页码：272-280
- 全文大小：718 K
文摘
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Presence of niobia was shown to be essential for high catalytic performance.
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Sharp optimum in activity was found for niobia loading of 0.3 wt.%.
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Catalyst water resistance was strongly improved by HMDS silylation post treatment.
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Stability of silylated catalyst increased substantially by water addition to feed.