Mechanism for oxidation of n-butane to maleic anhydride on a vanadium-phosphorus oxide catalyst
The values of the kinetic isotope effect have been determined in reactions where n-butane is converted to partial (maleic anhydride) and complete oxidation products on a vanadium-phosphorus oxide catalyst when hydrogen is replaced by deuterium in different positions of the n-butane molecule. The absence of intra- and intermolecular H-D exchange in butane under conditions of its catalytic oxidation has been established. On the basis of the observed effects it has been concluded that the interaction of n-butane with the surface of the catalyst is irreversible under the conditions of catalysis and that the rate-limiting stage due to cleavage of the C-H bond in a methylene group of butane is common to reactions of partial and complete oxidation of butane.
- Research Organization:
- L. Ya. Karpov Scientific-Research Institute of Physical Chemistry, Moscow, USSR
- OSTI ID:
- 5735196
- Journal Information:
- Kinet. Catal. (Engl. Transl.); (United States), Vol. 27:6; Other Information: Translated from Kinet. Katal.; 27: No. 6, 1495-1499(Nov-Dec 1986)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BUTANE
HETEROGENEOUS CATALYSIS
ISOTOPE EFFECTS
ISOTOPIC EXCHANGE
OXIDATION
PHOSPHORUS OXIDES
CATALYTIC EFFECTS
VANADIUM
ANHYDRIDES
CHEMICAL REACTION KINETICS
DEUTERATION
DEUTERIUM
DEUTERIUM COMPOUNDS
HYDROGEN
HYDROGEN TRANSFER
MALEIC ACID
ALKANES
CARBOXYLIC ACIDS
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTIONS
DICARBOXYLIC ACIDS
ELEMENTS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPES
KINETICS
LIGHT NUCLEI
METALS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
REACTION KINETICS
STABLE ISOTOPES
TRANSITION ELEMENTS
400202* - Isotope Effects
Isotope Exchange
& Isotope Separation