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Seed-assisted synthesis of TS-1 crystals containing Al with high catalytic performances in cyclohexanone ammoximation.

ABSTRACT: In this study, titanium silicalite (TS-1) crystals containing Al were synthesized using aluminosilicate MFI zeolites as seeds in a tetrapropylammonium bromide (TPAB)-ethanolamine (EA) system. The TS-1 containing Al possessed large size, large L _b value and higher catalytic activity in cyclohexanone ammoximation. Larger L _b value would endow the TS-1 crystals with better mechanical strength and erosion resistance. The introduction of an Al atom into the TS-1 crystals resulted in the production of more acid sites and a bit strong Brönsted acid sites; these acid sites were more favorable to the catalytic performances in cyclohexanone ammoximation.

SUBMITTER: Xue Y

PROVIDER: S-EPMC9059887 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Seed-assisted synthesis of TS-1 crystals containing Al with high catalytic performances in cyclohexanone ammoximation.

Xue Yan Y Zuo Guangling G Wen Yiqiang Y Wei Huijuan H Liu Meng M Wang Xiangyu X Li Baojun B

RSC advances 20190118 5

In this study, titanium silicalite (TS-1) crystals containing Al were synthesized using aluminosilicate MFI zeolites as seeds in a tetrapropylammonium bromide (TPAB)-ethanolamine (EA) system. The TS-1 containing Al possessed large size, large L b value and higher catalytic activity in cyclohexanone ammoximation. Larger L b value would endow the TS-1 crystals with better mechanical strength and erosion resistance. The introduction of an Al atom in ...[more]

PMID: 35520480

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