Aspects of selective oxidation and ammoxidation mechanisms over bismuth molybdate catalysts. [Allyl iodide]
Experimental results suggested that the oxidation and ammoxidation of propylene and allyl iodide on molybdenum trioxide and bismuth molybdates involved concerted chemisorption, ..cap alpha..-hydrogen abstraction, and subsequent oxygen or NH insertion to form acrolein in the absence and acrylonitrile in the presence of ammonia. Some allyl radicals, which apparently formed, were not the selective intermediates in the catalytic propylene oxidation. The detailed mechanisms were derived from product distributions obtained in the pulsed reactions of allyl iodide, propylene, and allyl radicals obtained by in-situ decomposition of 3,3'-azopropene on molybdenum trioxide, bismuth trioxide, and bismuth molybate containing 1:1, 1:2, and 1:3 Bi/sub 2/O/sub 3/ to MoO/sub 3/ at 320/sup 0/C.
- Research Organization:
- Standard Oil Co. (Ohio)
- OSTI ID:
- 6355887
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 59:1; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACROLEIN
ACRYLONITRILE
ALDEHYDES
ALKENES
ALKYL RADICALS
ALLYL RADICALS
BISMUTH COMPOUNDS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DATA
EXPERIMENTAL DATA
HIGH TEMPERATURE
HYDROCARBONS
INFORMATION
KINETICS
MOLYBDATES
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NITRILES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PROPYLENE
RADICALS
REACTION INTERMEDIATES
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YIELDS