石油化工2025，Vol.54Issue(5)：626-634,9.DOI:10.3969/j.issn.1000-8144.2025.05.003
液固相法制备钛丝光分子筛催化环己酮氨肟化反应
Cyclohexanone ammoximation reaction catalyzed by titanium mordenite using liquid-solid phase method
田方正 1姚风浩 1彭程 1宓家宁 1冯忠祥 1于如军1
作者信息
- 1. 山东理工大学 化学化工学院,山东 淄博 255000
- 折叠
摘要
Abstract
Titanium mordenite catalysts were prepared by a one-step liquid-solid phase method and characterized by XRD,SEM,XPS,FTIR,UV-Vis,N2 adsorption-desorption,and XRF.Then it was applied to cyclohexanone ammoximation reaction conditions to examine the activity of the catalyst.The experimental results show that the synergistic effect of H+and F-in the liquid-solid-phase reaction system leads to the de-alumination of the mordenite at room temperature.At the same time,the Ti element in the liquid phase is successfully implanted in the hydroxyl nests formed by de-alumination within the molecular sieve skeleton in a tetra-coordinated state.It is conducive to the generation of mesopores for the diffusion of the substrate molecules;under the reaction conditions of catalyst amount 0.2 g,70℃,2 h,n(cyclohexanone)∶n(H2O2)∶n(NH3)=1.0∶1.2∶1.7,the conversion of cyclohexanone is 99.5%,and the selectivity of the cyclohexanone oxime reaches 99.9%.关键词
液固相法/脱铝补钛/环己酮氨肟化Key words
liquid-solid phase method/de-aluminum and titanium replenishment/cyclohexanone ammoximation分类
化学工程引用本文复制引用
田方正,姚风浩,彭程,宓家宁,冯忠祥,于如军..液固相法制备钛丝光分子筛催化环己酮氨肟化反应[J].石油化工,2025,54(5):626-634,9.
