Citation: WANG Lei, YIN Han-Mei, WANG Jian-Hao, WU Li-Zhi, LIU Yue-Ming. Synthesis and Catalytic Oxidation Performance of B-TS-1[J]. Acta Physico-Chimica Sinica, ;2016, 32(10): 2574-2580. doi: 10.3866/PKU.WHXB201606294 shu

Synthesis and Catalytic Oxidation Performance of B-TS-1

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China

Received Date: 3 May 2016
Revised Date: 27 June 2016

Fund Project: The project was supported by the National Natural Science Foundation of China (U1462106) and Shanghai Leading Academic Discipline Project, China (B409).

In this paper, boron-modified titanium silicalite-1 (B-TS-1) was synthesized, and its catalytic performance was studied. B-TS-1 improved the stability of cyclohexanone ammoximation. Combined with the root of deactivation of the catalyst and H₂O₂ reaction behavior in the liquid-phase ammoximation process, analysis showed that H₂O₂ is the key to control the side reactions of the cyclohexanone ammoximation system to form organic byproducts, and these byproducts result in the deactivation of catalyst because they block pores. It is concluded that B-TS-1 could effectively decrease the residual H₂O₂ to suppress the side reactions and prolong the catalyst lifetime in cyclohexanone ammoximation. Simultaneous introduction of appropriate amounts of B and Al to form B/Al-TS-1 resulted in a material that further improved the stability of cyclohexanone ammoximation.
- B/Al-TS-1,
- Catalytic oxidation,
- H₂O₂,
- Cyclohexanone ammoximation,
- Deactivation
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