Selective sorption by zeolites

Details Selective sorption by zeolites Selective sorption by zeolites

1981-09-30

1984-06-05

Kaplan, G. L.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

260208, 546348, 585820, C07C 713

Patent

active

044530293

ABSTRACT:
An improved adsorptive separation process by the selective sorption properties of certain members of a novel class of zeolites is provided. The zeolites are characterized by a silica to alumina mole ratio greater than 12 and a Constraint Index within the approximate range of greater than 2 to about 12. The process of this invention involves selective separation of aromatic compounds selected from the group consisting of mono-substituted and para-disubstituted benzene ring compounds and mono-substituted pyridine ring compounds in admixture with aromatic compounds selected from the group consisting of ortho-disubstituted, meta-disubstituted and more highly substituted benzene ring compounds and poly-substituted pyridine ring compounds by contacting the mixture with said zeolite to effect the selective sorption of said aromatic compounds selected from the group consisting of mono-substituted and para-disubstituted benzene ring compounds and mono-substituted pyridine ring compounds by said zeolite.

REFERENCES:
patent: 3029242 (1962-04-01), Fleck
patent: 3699182 (1972-10-01), Cattanach
patent: 3702886 (1972-11-01), Argauer et al.
patent: 3709979 (1973-01-01), Chu
patent: 3724170 (1973-04-01), Allen et al.
patent: 4393266 (1983-07-01), Smolin

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