Kinetics studies and mechanism evolution of the epoxidation of styrene over nanoporous Au doped TS-1

• Autorzy: Saxena S. , Dwivedi R. , Bhadauria S. , Chumbhale V. R. , Prasad R.
• Języki publikacji: EN

Abstrakty

EN

A kinetic investigation of the slurry phase epoxidation of styrene with hydrogen peroxide has been carried out, for the first time, over nanoporous Au doped TS-1 catalyst, in a batch reactor, in the temperature range of 313-333 K. It was found that product selectivity and the rate of reaction are greatly influenced by concentrations of styrene and hydrogen peroxide. Kinetics studies reveal that the mechanism of the reaction is of the "Redox" type. The rate equation, r = k 1k2POPH/ (k1PO+ k2PH) deduced, assuming a steady state involving two stage oxidation-reduction process, represent the data most satisfactorily for the conversion of styrene to styrene oxide. A tentative mechanism of the process has also been suggested.

Słowa kluczowe

EN

kinetics; epoxidation; Au/TS-1; styrene; Styrene Oxide

PL

kinetyka; epoksydowanie; Au/TS-1; styren; tlenek styrenu

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2010
• Tom: Vol. 12, nr 4
• Strony: 72--78
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Saxena S.

autor

Dwivedi R.

autor

Bhadauria S.

autor

Chumbhale V. R.

autor

Prasad R.

• Catalysis and Nanomaterials Research Laboratory School of Chemical Sciences, Devi Ahilya University, Indore-452001 INDIA,

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