Process for the production of cyclohexane by liquid phase hydrog

Details Process for the production of cyclohexane by liquid phase hydrog Process for the production of cyclohexane by liquid phase hydrog

1991-08-23

1993-02-23

Garvin, Patrick P.

Chemistry of hydrocarbon compounds

Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...

Plural hydrogenation stages

585250, 585266, 585269, 585270, 585277, C07C 500

Patent

active

051892332

ABSTRACT:
Disclosed is an improvement in a process for production of cyclohexane by liquid phase hydrogenation of benzene wherein no diluent is necessary, which comprises contacting benzene and hydrogen in the presence of a mixed catalyst bed comprising a first catalyst which is a less active hydrogenation catalyst selected from elements of Group VIII of the Periodic Table and a second, more active catalyst, comprising a Group VIII metal supported on an oxide, such as, for example, alumina, silica or titania at a temperature of about 40.degree. C. to about 300.degree. C. and pressure sufficient to keep the benzene liquid at the chosen reaction temperature.

REFERENCES:
patent: 3152998 (1964-10-01), Moss
patent: 3796764 (1974-04-01), Suggitt et al.
patent: 3798279 (1974-03-01), Cessou et al.

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