Oxidative dehydrogenation of olefins to diolefins

Details Oxidative dehydrogenation of olefins to diolefins Oxidative dehydrogenation of olefins to diolefins

1977-03-18

1978-08-22

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260680D, C07C 1112

Patent

active

041089197

ABSTRACT:
There is disclosed a method comprising the oxidative dehydrogenation of at least one hydrocarbon selected from the group consisting of butene-1, butene-2, 2-methyl-1-butene, 2-methyl-2-butene, 3-methyl-1-butene, n-pentene, 2,3-dimethyl-1-butene, 2,3-dimethyl-2-butene, 2-methyl-1-pentene, 2-methyl-2-pentene, 4-methyl-2-pentene, 3-methyl-1-pentene, 3-methyl-2-pentene, 2-ethyl-1-butene, ethyl benzene and isopropyl benzene at oxidative dehydrogenation conditions while in contact with a catalyst consisting essentially of a mixture of zinc and molybdenum in combination with oxygen which is activated with chromium in combination with oxygen, said catalyst being calcined for at least 1 hour at 400.degree. C. to 1100.degree. C. prior to use.

REFERENCES:
patent: 3825502 (1974-07-01), Takenaka et al.
patent: 3862256 (1975-01-01), Isailingold et al.
patent: 3903189 (1975-09-01), Hoppstock et al.
patent: 3917736 (1975-11-01), Frech et al.
patent: 3932551 (1976-01-01), Grasselli et al.
patent: 3956181 (1976-05-01), Grasselli et al.
patent: 4002696 (1977-01-01), Hoppstock

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