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Mechanism for oxidation of n-butane to maleic anhydride on a vanadium-phosphorus oxide catalyst

Journal Article · · Kinet. Catal. (Engl. Transl.); (United States)
OSTI ID:5735196
; ; ; ; ;

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), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 27:6; ISSN KICAA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
ALKANES
ANHYDRIDES
BUTANE
CARBOXYLIC ACIDS
CATALYSIS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DEUTERATION
DEUTERIUM
DEUTERIUM COMPOUNDS
DICARBOXYLIC ACIDS
ELEMENTS
HETEROGENEOUS CATALYSIS
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROGEN TRANSFER
ISOTOPE EFFECTS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LIGHT NUCLEI
MALEIC ACID
METALS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
PHOSPHORUS OXIDES
REACTION KINETICS
STABLE ISOTOPES
TRANSITION ELEMENTS
VANADIUM