Selective oxidation of 4-tert-butylphenol by hydrogen peroxide in the presence of titanosilicates

The catalytic transformations of 4- tert -butylphenol in hydrogen peroxide solutions were investigated in the presence of crystalline and amorphous titanosilicates and titanium oxide. The TS-1 microporous crystalline titanosilicate was shown to exhibit low activity in the 4- tert -butylphenol transf...

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Bibliographic Details
Published in:Applied petrochemical research 2016-12, Vol.6 (4), p.419-426
Main Authors: Talipova, R. R., Kharrasov, R. U., Agliullin, M. R., Badikova, A. D., Kutepov, B. I.
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Chemistry
Chemistry and Materials Science
Crystal structure
Energy Systems
Hydrogen peroxide
Industrial Chemistry/Chemical Engineering
Nanochemistry
Nanotechnology and Microengineering
Original Article
Selectivity
Titanium dioxide
Titanium oxides
Transformations
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Summary:The catalytic transformations of 4- tert -butylphenol in hydrogen peroxide solutions were investigated in the presence of crystalline and amorphous titanosilicates and titanium oxide. The TS-1 microporous crystalline titanosilicate was shown to exhibit low activity in the 4- tert -butylphenol transformation due to the steric limitations on the diffusion of the substrate molecules towards catalytic active centers. Mesoporous amorphous titanosilicates were more selective in the 4- tert -butylcatechol formation than the titanium oxide. The selectivity to 4- tert -butylcatechol in the presence of the TiO 2 did not exceed 20 mol%. The maximum 53 mol% selectivity value to 4- tert -butylcatechol was shown to occur over the amorphous mesoporous titanosilicate containing 1.9 wt% of Ti, the 4- tert -butylphenol conversion value being equal to 42 mol%.
ISSN:2190-5525
2190-5525
DOI:10.1007/s13203-016-0169-7