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
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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.
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Keywords:
- B/Al-TS-1,
- Catalytic oxidation,
- H2O2,
- Cyclohexanone ammoximation,
- Deactivation
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