Xylene isomerization

Details Xylene isomerization Xylene isomerization

1977-12-19

1979-11-20

Davis, C.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By ring formation from nonring moiety, e.g., aromatization,...

585322, 585481, 585486, C07C 524

Patent

active

RE0301574

ABSTRACT:
Mixtures of C.sub.8 aromatic hydrocarbons are contacted in vapor phase with acid zeolite ZSM-5. The xylene content is thereby isomerized and the ethyl benzene content of the charge is converted in a manner which results in net increase of aromatic rings.

REFERENCES:
patent: 2795630 (1957-06-01), Lien et al.
patent: 3646236 (1972-02-01), Keith et al.
patent: 3691247 (1972-09-01), Billings
patent: 3751504 (1973-08-01), Keown et al.
patent: 3756942 (1973-09-01), Cattanach
patent: 3761389 (1973-09-01), Rollman
patent: 3790471 (1974-02-01), Arqzuer et al.

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