Zeolite adsorbent for separation of para-xylene

Details Zeolite adsorbent for separation of para-xylene Zeolite adsorbent for separation of para-xylene

1982-07-29

1986-10-07

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

Including organic component

B01J 2906

Patent

active

046159940

ABSTRACT:
Para-xylene may be recovered as raffinate by contacting a C-8 aromatic hydrocarbon mixture, in the presence of toluene desorbent, with a synthetic crystalline lithium aluminosilicate zeolite HP (formed by ion exchange from a sodium aluminosilicate zeolite HP having a lattice constant of 25.02-25.10 .ANG.)--preferably in the presence of a pyridine.

REFERENCES:
patent: 4289740 (1981-09-01), Estes
patent: 4306962 (1981-12-01), Estes
patent: 4351981 (1982-09-01), Smolin
patent: 4439535 (1984-03-01), Smolin et al.

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