Kinetic studies on the promotional effect of Te in Pd-Te-H4SiW12O40/SiO2 for direct oxidation of ethylene to acetic acid

The role of Te in Pd–Te–H4SiW12O40/SiO2, a highly active and selective catalyst for direct oxidation of ethylene to acetic acid, was investigated. Kinetic studies of ethylene oxidation over Pd–H4SiW12O40/SiO2 and Te-promoted Pd-H4SiW12O40/SiO2 demonstrated that doping with Te enhanced the rate of re...

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Published in:Catalysis letters 2007-12, Vol.119 (3-4), p.252-256
Main Authors: MIYAJI, Atsuyuki, HAMADA, Tomoaki, KAMIYA, Yuichi, NAKAJO, Tetsuo, OKUHARA, Toshio
Format: Article
Language:English
Subjects:
Acetaldehyde
Acetic acid
Catalysis
Chemistry
Ethylene
Exact sciences and technology
General and physical chemistry
Oxidation
Silicon dioxide
Tellurium
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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creator MIYAJI, Atsuyuki
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OKUHARA, Toshio
description The role of Te in Pd–Te–H4SiW12O40/SiO2, a highly active and selective catalyst for direct oxidation of ethylene to acetic acid, was investigated. Kinetic studies of ethylene oxidation over Pd–H4SiW12O40/SiO2 and Te-promoted Pd-H4SiW12O40/SiO2 demonstrated that doping with Te enhanced the rate of reaction of ethylene to acetaldehyde but reduced direct formation of CO2 from ethylene. In contrast, the successive reaction of acetaldehyde to acetic acid was not influenced to a significant extent by the addition of Te.
doi_str_mv 10.1007/s10562-007-9225-3
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source Springer Nature
subjects Acetaldehyde
Acetic acid
Catalysis
Chemistry
Ethylene
Exact sciences and technology
General and physical chemistry
Oxidation
Silicon dioxide
Tellurium
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
title Kinetic studies on the promotional effect of Te in Pd-Te-H4SiW12O40/SiO2 for direct oxidation of ethylene to acetic acid
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