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- W2008076879 abstract "Mixed oxide catalysts, containing molybdenum and vanadium (MoV) together with another transition metal oxide (Ti, Cr, Mn, Fe, Co, Ni, Nb, Ta, or Ce), are active as low as 200 °C for the oxydehydrogenation of ethane to ethylene. A material composed of oxides of composition Mo0.61V0.31Nb0.08 appears to be optimum for the reaction. The better MoV catalysts are characterized by a broad X-ray diffraction band near 4.0 Å. The presence of niobium stabilizes the catalyst structure against oxidation and reduction and permits a very strongly oxidized or reduced catalyst to be returned more readily to its original state. The oxydehydrogenation of ethane may involve formation of a surface ethoxide intermediate, since ethanol gives a mixture of both ethane and ethylene with the catalyst in the absence of oxygen. At superatmospheric pressures, acetic acid appears as a product of the subsequent oxidation of ethylene. The kinetics of the process are described. The reaction rates to acetic acid and carbon oxides were found to be dependent on the ethylene concentration but independent of ethane. The catalysts are the basis of a very efficient process for the production of ethylene and acetic acid from ethane. Higher hydrocarbons are nearly completely burned." @default.
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- W2008076879 date "1978-03-01" @default.
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- W2008076879 title "The oxidative dehydrogenation of ethane over catalysts containing mixed oxides of molybdenum and vanadium" @default.
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- W2008076879 doi "https://doi.org/10.1016/0021-9517(78)90128-8" @default.
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