Abstract
The effects of some variants for silica support pretreatment on the catalytic properties and reusability of silica-supported titania in the liquid-phase oxidation of 2,3,6-trimethylphenol (TMP) into 2,3,5-trimethyl-1,4-benzoquinone (TMBQ) with hydrogen peroxide, a green oxidizer, have been investigated. The support pretreated with aqueous ammonia and then evacuated demonstrates the optimal activity, selectivity, and reusability of catalysts. The TMBQ selectivity reaches 93% at a TMP conversion of 90% in at least four cycles for the catalyst prepared.
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Original Russian Text © V.V. Torbina, A.A. Vodyankin, I.D. Ivanchikova, O.A. Kholdeeva, O.V. Vodyankina, 2015, published in Kinetika i Kataliz, 2015, Vol. 56, No. 3, pp. 370–376.
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Torbina, V.V., Vodyankin, A.A., Ivanchikova, I.D. et al. Support pretreatment effect on the catalytic properties and reusability of silica-supported titania catalysts in 2,3,6-trimethylphenol oxidation with hydrogen peroxide. Kinet Catal 56, 369–374 (2015). https://doi.org/10.1134/S0023158415030209
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DOI: https://doi.org/10.1134/S0023158415030209