Selective oxidation of olefins over transition metal-exchanged zeolite Y. [Cyclohexen and 1,4-cyclohexadiene]
Book
·
OSTI ID:6053680
Bis(ethylenediamine)cobalt(II) formed dioxygen adducts in zeolite Y, which were catalytic intermediates in the oxidative dehydrogenation of 1,4-cyclohexadiene to benzene and water. The reaction rate at about 65/sup 0/C was first order with respect to the cobalt-dioxygen complex concentration and the cyclohexadiene partial pressure and zero order with respect to the oxygen partial pressure. The liquid-phase catalytic oxidation of cyclohexene with molecular oxygen over various molybdenum-exchanged Y-type zeolites, including MoHY and MoCoHY, had induction periods of 0-12 hr and yielded products, including cyclohexene oxide, 2-cyclohexen-1-ol, and 2-cyclohexen-1-one; the selectivity for the epoxide was 25% at 50% conversion; a synergistic effect was found between molybdenum and cobalt. Molybdenum-exchanged zeolites were comparable in activity and epoxide selectivity to homogeneous catalysts.
- OSTI ID:
- 6053680
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKENES
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COBALT
CYCLOALKENES
DATA
DIENES
ELEMENTS
EXPERIMENTAL DATA
HYDROCARBONS
INDUCTION
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
MEDIUM TEMPERATURE
METALS
MINERALS
MOLYBDENUM
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
POLYENES
REACTION INTERMEDIATES
REACTION KINETICS
TRANSITION ELEMENTS
YIELDS
ZEOLITES
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKENES
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COBALT
CYCLOALKENES
DATA
DIENES
ELEMENTS
EXPERIMENTAL DATA
HYDROCARBONS
INDUCTION
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
MEDIUM TEMPERATURE
METALS
MINERALS
MOLYBDENUM
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
POLYENES
REACTION INTERMEDIATES
REACTION KINETICS
TRANSITION ELEMENTS
YIELDS
ZEOLITES