Preparation of aldoxime through direct ammoximation using titanium silicalite-1 catalyst

Zhigang Xu; Xiongfei Jin; Tao Zhou; Qian Zou; Longcheng Liu; zhongbo Wang; Hanbing Sheng; Huasheng Xie

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Preparation of aldoxime through direct ammoximation using titanium silicalite-1 catalyst

Full Length Article | Updated：2026-01-06

- Preparation of aldoxime through direct ammoximation using titanium silicalite-1 catalyst
- Chinese Journal of Chemical Engineering Vol. 47, Issue 7, Pages: 11-17(2022)
- Affiliations：
  
  1. Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, College of Chemistry and Chemical Engineering, Central South University,Changsha,China,410083
  2. Kopperchem Industry Corp., LTD, Solvent Extraction Engineering Research Center,Chongqing,China,401221
  3. Cangzhou Dahua Group Co., Ltd.,Cangzhou,China,061000
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2022
- Accepted：
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Zhigang Xu, Xiongfei Jin, Tao Zhou, Qian Zou, Longcheng Liu, zhongbo Wang, Hanbing Sheng, Huasheng Xie. Preparation of aldoxime through direct ammoximation using titanium silicalite-1 catalyst[J]. Chinese Journal of Chemical Engineering, 2022, 47(7): 11-17.
DOI：

Zhigang Xu, Xiongfei Jin, Tao Zhou, Qian Zou, Longcheng Liu, zhongbo Wang, Hanbing Sheng, Huasheng Xie. Preparation of aldoxime through direct ammoximation using titanium silicalite-1 catalyst[J]. Chinese Journal of Chemical Engineering, 2022, 47(7): 11-17. DOI：

摘要

Abstract

The liquid phase direct ammoximation of 5-isooctyl salicylaldehyde with ammonia and hydrogen peroxide was studied using titanium silicalite-1 (TS-1) catalyst. The effect of reaction parameters on the yield of the product was studied

which include reaction temperature

reaction time

molar ratio of ammonia to aldehyde as well as hydrogen peroxide to aldehyde. The influence of the amount of catalyst on the reaction results was also investigated. The maximum 5-isooctyl salicylaldoxime yield of 98.76% was achieved under the following optimal reaction conditions:the molar ratio of 5-isooctylaldehyde to hydrogen peroxide and ammonia of 1:1.4:1.6

the reaction temperature of 70℃

the amount of TS-1 of 17.5 g·mol

-1

(5-isooctyl salicylaldehyde)

and the feeding time of 2 h. This method has the mild reaction conditions and avoids the shortcomings of traditional methods. Moreover

useless inorganic salts by-products are avoided

and there is no environmental pollution.

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