Mechanism of ethylene epoxidation

Conference · Thu Jan 01 04:00:00 EST 1981 · Catal. Rev. - Sci. Eng.; (United States)

OSTI ID:6431212

Sachtler, W M.H.; Backx, C; Van Santen, R A

During the epoxidation of olefins there appears to be 2 relevant facts: (1) In the liquid phase, the direct reaction of molecular oxygen with an olefin never results in significant yields of epoxides; and (2) No homogeneous catalyst is known that efficiently catalyzes the epoxidation of olefin with molecular dioxygen. This paper briefly reviews some results on epoxidation reaction kinetics and then inspects the results of work directed toward characterizign adsorption complexes. This includes IR data obtained with supported silver and physical measurements on oxygen adsorption. The relevance of all these data on the mechanism of ethylene epoxidation in the steady state of a working catalyst, under industrial conditions, will be addressed. Discussed are: kinetic data on ethylene oxidation, characterization of oxygen adsorbed on silver, and recent results of oxygen-ethylene interaction with unsupported silver. (DMC)

• Research Organization: Shell Research, Amsterdam, Netherland
• OSTI ID: 6431212
• Report Number(s): CONF-800779-
• Conference Information: Journal Name: Catal. Rev. - Sci. Eng.; (United States) Journal Volume: 23:1 and 2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ABSORPTION SPECTROSCOPY
ACTIVATION ENERGY
ADSORPTION
ADSORPTION HEAT
ALKENES
CATALYSIS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
ELECTRON EMISSION
ELECTRON SPECTROSCOPY
ELECTRON SPIN RESONANCE
ELEMENTS
EMISSION
ENERGY
ENTHALPY
EPOXIDES
ETHYLENE
FIELD EMISSION
HYDROCARBONS
INFRARED SPECTRA
KINETICS
MAGNETIC RESONANCE
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDATION
OXYGEN
PHOTOELECTRON SPECTROSCOPY
PHYSICAL PROPERTIES
REACTION KINETICS
RESONANCE
SILVER
SORPTION
SPECTRA
SPECTROSCOPY
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS