Selective Oxidation of Methyl Ethyl Ketone to Diacetyl Over Vanadium Phosphorus Oxide Catalysts

E. McCullagh; J. B. McMonagle; B. K. Hodnett

doi:10.1016/S0167-2991(08)61151-9

Selective Oxidation of Methyl Ethyl Ketone to Diacetyl Over Vanadium Phosphorus Oxide Catalysts

E. McCullagh
, J. B. McMonagle
, B. K. Hodnett

Retired Staff

University of Limerick

Research output: Contribution to journal › Article › peer-review

Abstract

Selective oxidation of methyl ethyl ketone to diacetyl has been studied by passing a mixture of the ketone in artificial air over vanadium phosphorus oxide catalysts in the temperature range 200–350°C. Products observed included diacetyl, methyl vinyl ketone, acetaldehyde, acetic acid and carbon dioxide. C4 products were favoured at low temperatures and at low or zero oxygen partial pressures. These results are rationalised in terms of two pathways for C2 products, namely oxidation of the double bond in the enol form of methyl ethyl ketone to yield acetic acid and acetaldehyde, and acid catalysed hydration of the keto form to yield acetaldehyde only. The C4 products are envisaged to go through a common intermediate, namely, CH₃COCHOHCH₃, formed by interaction between methyl ethyl ketone and lattice oxygen.

Original language	English
Pages (from-to)	437-444
Number of pages	8
Journal	Studies in Surface Science and Catalysis
Volume	59
Issue number	C
DOIs	https://doi.org/10.1016/S0167-2991(08)61151-9
Publication status	Published - 1 Jan 1991

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title = "Selective Oxidation of Methyl Ethyl Ketone to Diacetyl Over Vanadium Phosphorus Oxide Catalysts",

abstract = "Selective oxidation of methyl ethyl ketone to diacetyl has been studied by passing a mixture of the ketone in artificial air over vanadium phosphorus oxide catalysts in the temperature range 200–350°C. Products observed included diacetyl, methyl vinyl ketone, acetaldehyde, acetic acid and carbon dioxide. C4 products were favoured at low temperatures and at low or zero oxygen partial pressures. These results are rationalised in terms of two pathways for C2 products, namely oxidation of the double bond in the enol form of methyl ethyl ketone to yield acetic acid and acetaldehyde, and acid catalysed hydration of the keto form to yield acetaldehyde only. The C4 products are envisaged to go through a common intermediate, namely, CH3COCHOHCH3, formed by interaction between methyl ethyl ketone and lattice oxygen.",

author = "E. McCullagh and McMonagle, \{J. B.\} and Hodnett, \{B. K.\}",

year = "1991",

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doi = "10.1016/S0167-2991(08)61151-9",

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journal = "Studies in Surface Science and Catalysis",

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T1 - Selective Oxidation of Methyl Ethyl Ketone to Diacetyl Over Vanadium Phosphorus Oxide Catalysts

AU - McCullagh, E.

AU - McMonagle, J. B.

AU - Hodnett, B. K.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - Selective oxidation of methyl ethyl ketone to diacetyl has been studied by passing a mixture of the ketone in artificial air over vanadium phosphorus oxide catalysts in the temperature range 200–350°C. Products observed included diacetyl, methyl vinyl ketone, acetaldehyde, acetic acid and carbon dioxide. C4 products were favoured at low temperatures and at low or zero oxygen partial pressures. These results are rationalised in terms of two pathways for C2 products, namely oxidation of the double bond in the enol form of methyl ethyl ketone to yield acetic acid and acetaldehyde, and acid catalysed hydration of the keto form to yield acetaldehyde only. The C4 products are envisaged to go through a common intermediate, namely, CH3COCHOHCH3, formed by interaction between methyl ethyl ketone and lattice oxygen.

AB - Selective oxidation of methyl ethyl ketone to diacetyl has been studied by passing a mixture of the ketone in artificial air over vanadium phosphorus oxide catalysts in the temperature range 200–350°C. Products observed included diacetyl, methyl vinyl ketone, acetaldehyde, acetic acid and carbon dioxide. C4 products were favoured at low temperatures and at low or zero oxygen partial pressures. These results are rationalised in terms of two pathways for C2 products, namely oxidation of the double bond in the enol form of methyl ethyl ketone to yield acetic acid and acetaldehyde, and acid catalysed hydration of the keto form to yield acetaldehyde only. The C4 products are envisaged to go through a common intermediate, namely, CH3COCHOHCH3, formed by interaction between methyl ethyl ketone and lattice oxygen.

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DO - 10.1016/S0167-2991(08)61151-9

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AN - SCOPUS:77956904861

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JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

IS - C

ER -

Selective Oxidation of Methyl Ethyl Ketone to Diacetyl Over Vanadium Phosphorus Oxide Catalysts

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