The mechanism of catalyst deactivation and by-product formation in acetone ammoximation catalyzed by hollow titanium silicalite

Y Wang, S Zhang, Y Zhao, M Lin

文献索引：Wang, Yi; Zhang, Shengjian; Zhao, Yingxian; Lin, Min Journal of Molecular Catalysis A: Chemical, 2014 , vol. 385, p. 1 - 6

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被引用次数: 7

摘要

Abstract The deactivation mechanism of hollow titanium silicalite (HTS) in aqueous ammoximation of acetone was investigated. Amines and polynitro-compounds, formed by alkaline autocatalytic and oxidative coupling reaction respectively, were determined to be the main by-products. The results showed that deactivation of HTS could be caused by two main reasons:(1) slow deactivation due to by-product amines adsorbed on the active sites ...