Synthesis of mesoporous TS-1 zeolite microspheres and catalytic property in cyclohexanone ammoximation

Zhendong Wang; Le Xu; Mingyuan He; Peng Wu

Synthesis of mesoporous TS-1 zeolite microspheres and catalytic property in cyclohexanone ammoximation

Zhendong Wang, Le Xu, Mingyuan He, Peng Wu

School of Chemistry and Molecular Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

Abstract

Mesoporous TS-1 zeolite microspheres were synthesized by hydrothermal crystallization with the assistance of triblock copolymer F127, and they were employed as the catalysts for the liquid-phase ammoximation of cyclohexanone with ammonia and hydrogen peroxide. The reaction parameters, molar ratio of H₂O₂ to cyclohexanone and NH₃ to cyclohexanone, which governed the cyclohexanone conversion, oxime selectivity and catalyst deactivation, were investigated by simulating the operating conditions in an industrial process. Under optimized reaction conditions of temperature 75°C, molar ratio of H₂O₂ to cyclohexanone 1.1, molar ratio of NH₃ to cyclohexanone 1.7, WHSV 6.3 h^-1, mesoporous TS-1 microspheres exhibited cyclohexanone conversion above 98% and oxime selectivity above 99%. Moreover, the TS-1 microsphere catalyst showed a longer lifetime than conventional nanosized TS-1 particles.

Original language	English
Pages (from-to)	456-461
Number of pages	6
Journal	Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology
Volume	29
Issue number	5
State	Published - Oct 2013

Keywords

Cyclohexanone ammoximation
Cyclohexanone oxime
Mesopores
Titanium silicate zeolite
Triblock copolymer surfactant

Cite this

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title = "Synthesis of mesoporous TS-1 zeolite microspheres and catalytic property in cyclohexanone ammoximation",

abstract = "Mesoporous TS-1 zeolite microspheres were synthesized by hydrothermal crystallization with the assistance of triblock copolymer F127, and they were employed as the catalysts for the liquid-phase ammoximation of cyclohexanone with ammonia and hydrogen peroxide. The reaction parameters, molar ratio of H2O2 to cyclohexanone and NH3 to cyclohexanone, which governed the cyclohexanone conversion, oxime selectivity and catalyst deactivation, were investigated by simulating the operating conditions in an industrial process. Under optimized reaction conditions of temperature 75°C, molar ratio of H2O2 to cyclohexanone 1.1, molar ratio of NH3 to cyclohexanone 1.7, WHSV 6.3 h-1, mesoporous TS-1 microspheres exhibited cyclohexanone conversion above 98\% and oxime selectivity above 99\%. Moreover, the TS-1 microsphere catalyst showed a longer lifetime than conventional nanosized TS-1 particles.",

keywords = "Cyclohexanone ammoximation, Cyclohexanone oxime, Mesopores, Titanium silicate zeolite, Triblock copolymer surfactant",

author = "Zhendong Wang and Le Xu and Mingyuan He and Peng Wu",

year = "2013",

month = oct,

language = "英语",

volume = "29",

pages = "456--461",

journal = "Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology",

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TY - JOUR

T1 - Synthesis of mesoporous TS-1 zeolite microspheres and catalytic property in cyclohexanone ammoximation

AU - Wang, Zhendong

AU - Xu, Le

AU - He, Mingyuan

AU - Wu, Peng

PY - 2013/10

Y1 - 2013/10

N2 - Mesoporous TS-1 zeolite microspheres were synthesized by hydrothermal crystallization with the assistance of triblock copolymer F127, and they were employed as the catalysts for the liquid-phase ammoximation of cyclohexanone with ammonia and hydrogen peroxide. The reaction parameters, molar ratio of H2O2 to cyclohexanone and NH3 to cyclohexanone, which governed the cyclohexanone conversion, oxime selectivity and catalyst deactivation, were investigated by simulating the operating conditions in an industrial process. Under optimized reaction conditions of temperature 75°C, molar ratio of H2O2 to cyclohexanone 1.1, molar ratio of NH3 to cyclohexanone 1.7, WHSV 6.3 h-1, mesoporous TS-1 microspheres exhibited cyclohexanone conversion above 98% and oxime selectivity above 99%. Moreover, the TS-1 microsphere catalyst showed a longer lifetime than conventional nanosized TS-1 particles.

AB - Mesoporous TS-1 zeolite microspheres were synthesized by hydrothermal crystallization with the assistance of triblock copolymer F127, and they were employed as the catalysts for the liquid-phase ammoximation of cyclohexanone with ammonia and hydrogen peroxide. The reaction parameters, molar ratio of H2O2 to cyclohexanone and NH3 to cyclohexanone, which governed the cyclohexanone conversion, oxime selectivity and catalyst deactivation, were investigated by simulating the operating conditions in an industrial process. Under optimized reaction conditions of temperature 75°C, molar ratio of H2O2 to cyclohexanone 1.1, molar ratio of NH3 to cyclohexanone 1.7, WHSV 6.3 h-1, mesoporous TS-1 microspheres exhibited cyclohexanone conversion above 98% and oxime selectivity above 99%. Moreover, the TS-1 microsphere catalyst showed a longer lifetime than conventional nanosized TS-1 particles.

KW - Cyclohexanone ammoximation

KW - Cyclohexanone oxime

KW - Mesopores

KW - Titanium silicate zeolite

KW - Triblock copolymer surfactant

UR - https://www.scopus.com/pages/publications/84891314064

M3 - 文章

AN - SCOPUS:84891314064

SN - 1001-7631

VL - 29

SP - 456

EP - 461

JO - Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology

JF - Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology

IS - 5

ER -

Synthesis of mesoporous TS-1 zeolite microspheres and catalytic property in cyclohexanone ammoximation

Abstract

Keywords

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