Selective sorption by zeolites

Details Selective sorption by zeolites Selective sorption by zeolites

1981-09-30

1983-12-27

Kaplan, G. L.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

208310Z, 585820, C07C 713

Patent

active

044232802

ABSTRACT:
An improved hydrocarbon separation process by the selective sorption properties of certain members of a novel class of zeolites is provided. The novel class of zeolites is characterized by a silica to alumina mole ratio greater than 12 and a Constraint Index within the approximate range of greater than about 2 to about 12. The process of this invention involves selective separation of non-aromatic compounds in admixture with aromatic compounds by contacting the mixture with zeolite ZSM-5, ZSM-11, ZSM-23 or ZSM-35, said zeolite having a SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio of at least about 12, to effect the selective sorption of said non-aromatic compounds by said zeolite.

REFERENCES:
patent: 3485748 (1969-12-01), Eberly et al.
patent: 3699182 (1972-10-01), Cattanach
patent: 3702886 (1972-11-01), Argauer et al.
patent: 3732326 (1973-05-01), Chen
patent: 4016245 (1977-04-01), Plank et al.
patent: 4076842 (1978-02-01), Plank et al.

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