AmmAmmoximation of Cyclohexanone to Cyclohexanone Oxime Catalyzed by Titanium Silicalite-1 Zeolite in Three-phase System<sup>*</sup>

刘国清; 吴剑; 罗和安

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AmmAmmoximation of Cyclohexanone to Cyclohexanone Oxime Catalyzed by Titanium Silicalite-1 Zeolite in Three-phase System^*

Updated：2026-01-06

- AmmAmmoximation of Cyclohexanone to Cyclohexanone Oxime Catalyzed by Titanium Silicalite-1 Zeolite in Three-phase System^*
- Chinese Journal of Chemical Engineering Vol. 20, Issue 5, Pages: 889-894(2012)
- Affiliations：
  
  1. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology,Xiangtan,China,411201
  2. School of Chemical Engineering, Xiangtan University,Xiangtan,China,411105
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2012
- Accepted：
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[J]. Chinese Journal of Chemical Engineering, 2012, 20(5): 889-894.
DOI：

[J]. Chinese Journal of Chemical Engineering, 2012, 20(5): 889-894. DOI：

摘要

Abstract

An innovative green process of producing ε-caprolactam was proposed by integrating ammoximation and Beckmann rearrangement effectively. As a first part of the new process

TS-1 molecular sieve-catalyzed synthesis of cyclohexanone oxime from cyclohexanone

ammonia and hydrogen peroxide was carried out in a batch plant. Cyclohexane was used as the solvent in the three-phase reaction system. The influences of essential process parameters on ammoximation were investigated. Under the reaction conditions as catalyst content of 2.5% (by mass); H

/yclohexanone molar ratio of 1.10; NH

/cyclohexanone molar ratio of 2.20; reaction temperature of 343 K; reaction time of 5 h

high conversion of cyclohexanone and selectivity to oxime (both99%) were obtained. Thus

the three-phase ammoximation process showed equal catalytic activity as TS-1 but much more convenient and simpler for the separation of catalyst in comparison to the industrial two-phase system with t-butanol used as solvent.

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