Separation of ortho bi-alkyl substituted monocyclic aromatic iso

Details Separation of ortho bi-alkyl substituted monocyclic aromatic iso Separation of ortho bi-alkyl substituted monocyclic aromatic iso

1984-04-02

1984-11-13

Gantz, Delbert E.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

208310Z, C07C 712

Patent

active

044827776

ABSTRACT:
A process for separating the ortho-isomer from a feed mixture comprising at least two bi-alkyl substituted monocyclic aromatic isomers, including the ortho-isomers, the isomers having from 9 to about 18 carbon atoms per molecule. The process comprises contacting, at adsorption conditions, the feed with an adsorbent comprising a crystalline aluminosilicate consisting essentially of a sodium or calcium Y-type zeolite or sodium X-type zeolite which selectively adsorbs the ortho-isomers. The feed is removed from the adsorbent, and the ortho-isomers recovered by desorption at desorption conditions with a desorbent material comprising a C.sub.8 or heavier monocyclic aromatic with a boiling point at least 5.degree. C. different than that of the feed mixture when the adsorbent is the sodium Y-type zeolite, or a C.sub.8 or lighter monocyclic aromatic when the adsorbent is a sodium X or calcium Y-type zeolite.
The process is particularly amenable to the employment of a simulated moving bed flow scheme.

REFERENCES:
patent: B426274 (1976-01-01), Hedge
patent: 2985589 (1961-05-01), Broughton et al.
patent: 3201491 (1965-08-01), Stine et al.
patent: 3374182 (1968-03-01), Young
patent: 3558730 (1971-01-01), Neuzil
patent: 3558732 (1971-01-01), Neuzil
patent: 3626020 (1971-12-01), Neuzil
patent: 3663638 (1972-05-01), Neuzil
patent: 3665046 (1972-05-01), De Rosset
patent: 3668266 (1972-06-01), Chen et al.
patent: 3686342 (1972-08-01), Neuzil
patent: 3686343 (1972-08-01), Beardon, Jr. et al.
patent: 3700744 (1972-10-01), Berger et al.
patent: 3734974 (1973-05-01), Neuzil
patent: 3894109 (1975-07-01), Rosback
patent: 3917734 (1975-11-01), De Rosset
patent: 3943182 (1976-03-01), Neuzil et al.
patent: 3943184 (1976-03-01), Rosback
patent: 3997619 (1976-12-01), Neuzil
patent: 3997620 (1976-12-01), Neuzil
patent: 4021499 (1977-05-01), Bieser
patent: 4326092 (1982-04-01), Neuzil
patent: 4376226 (1983-03-01), Rosenfeld et al.
patent: 4423279 (1983-12-01), Kulprathipanja

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