Process for extracting meta-dichlorobenzene from isomer mixtures

Details Process for extracting meta-dichlorobenzene from isomer mixtures Process for extracting meta-dichlorobenzene from isomer mixtures

1989-11-08

1991-02-26

Lone, Werren B.

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

Organic compounds

Halogen containing

C07C 1738

Patent

active

049963805

ABSTRACT:
A process for separating the isomers of dichlorobenzene from a feed mixture of the same. Separation of the isomers is effected by selective absorption and desorption and is susceptible to various flow schemes for performing continuous adsorptive separations. The process uses an X-type zeolite adsorbent having a mixture of sodium and potassium ions in the exchangeable cationic sites. The desorbent may be an alkyl benzene, such as toluene, xylene, p-diethylbenzene, etc.

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patent: 3706812 (1972-12-01), De Rosset et al.
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patent: 4642397 (1987-02-01), Zinnen et al.
Kuhl, Zeolites, vol. 7, Sep. 1987, pp. 451-457.

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