Process for the preparation of cyclohexanone

Details Process for the preparation of cyclohexanone Process for the preparation of cyclohexanone

1979-04-20

1981-02-10

Helfin, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

585266, 568826, 422189, 568376, 568357, 568360, 568361, 568366, C07C 4565

Patent

active

042501180

ABSTRACT:
An improved process for the preparation of cyclohexanone from benzene. Benzene is hydrogenated in a gaseous phase in a hydrogenation zone to form cyclohexane; cyclohexane is oxidized in a liquid phase to form a mixture containing cyclohexanol and cyclohexanone; and cyclohexanone is separated from this mixture and is catalytically dehydrogenated to form cyclohexanone and a hydrogen containing gas. The resulting hydrogen containing gas is introduced into a washing zone wherein it is washed with cyclohexane or benzene and the hydrogen gas thus purified is fed into the hydrogenation zone.

REFERENCES:
patent: 2083877 (1937-06-01), Steck et al.
patent: 3027410 (1962-03-01), Poehler et al.
patent: 3318965 (1967-05-01), Hutto et al.
patent: 3767719 (1973-10-01), Colvert et al.

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