Catalytic oxidation of propylene--6. Mechanistic studies utilizing isotopic tracers
The oxidation of deuterated propylene with oxygen and of propylene with oxygen-18 on well-characterized Bi/sub 2/Mo/sub 3/O/sub 12/, Bi/sub 2/MoO/sub 6/, and Bi/sub 3/FeMo/sub 2/O/sub 12/ catalysts at 350/sup 0/-450/sup 0/C revealed that acrolein formed only by the redox mechanism and not by the peroxide mechanism on the catalysts tested. Carbon dioxide formed only by consecutive oxidation of acrolein on the two bismuth molybdate catalysts and its formation involved only lattice oxygen, but on the bismuth iron molybdate, carbon dioxide formed by parallel and consecutive reactions involving adsorbed and lattice oxygen. The rate-determining step of acrolein production on all three catalysts was the formation of an allylic species by abstraction of a methyl hydrogen from propylene.
- Research Organization:
- Univ. of Wisconsin, Milwaukee
- OSTI ID:
- 6448603
- Journal Information:
- J. Catal.; (United States), Vol. 61:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BISMUTH
CATALYTIC EFFECTS
IRON
MOLYBDATES
PROPYLENE
DEUTERATION
OXIDATION
ACROLEIN
CARBON DIOXIDE
CATALYSTS
CHEMICAL REACTION KINETICS
DEUTERIUM COMPOUNDS
HIGH TEMPERATURE
OXYGEN
OXYGEN 18
ALDEHYDES
ALKENES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
EVEN-EVEN NUCLEI
HYDROCARBONS
HYDROGEN COMPOUNDS
ISOTOPES
KINETICS
LIGHT NUCLEI
METALS
MOLYBDENUM COMPOUNDS
NONMETALS
NUCLEI
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
400201 - Chemical & Physicochemical Properties