Methods for reactivating zeolites

Details Methods for reactivating zeolites Methods for reactivating zeolites

1975-02-03

1977-08-23

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

55 75, 208310Z, 252411R, 252420, 260676MS, B01J 2938, C10G 2512, C07C 712

Patent

active

040439380

ABSTRACT:
A zeolite of type 5A, which has been used to separate normal paraffins from a hydrocarbon mixture containing normal paraffins by bringing the hydrocarbon mixture into contact with the zeolite whereby the zeolite absorbs the normal paraffins and then desorbing the normal paraffins from the zeolite by contacting the zeolite with water-containing ammonia vapour, is reactivated by first contacting the zeolite with at least one of water, aqueous solutions and water-containing gases at a temperature below 350.degree. C and then heating the zeolite to a temperature above 350.degree. C.

REFERENCES:
patent: 3075023 (1963-01-01), Garrison et al.
patent: 3347783 (1967-10-01), Feldbauer, Jr.
patent: 3405057 (1968-10-01), Neuzil et al.
patent: 3420772 (1969-01-01), Eck
patent: 3422004 (1969-01-01), Padrta
patent: 3437601 (1969-04-01), Skala et al.
patent: 3531400 (1970-09-01), Wehner et al.
patent: 3622506 (1971-11-01), De Rosset
patent: 3836455 (1974-09-01), Blytas

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