Selective dealumination of zeolites

Details Selective dealumination of zeolites Selective dealumination of zeolites

1985-08-02

1987-03-31

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

Gallium containing

502 85, 423112, B01J 2906, B01J 2928

Patent

active

046543163

ABSTRACT:
This invention relates to a process for selective dealumination, particularly surface dealumination of zeolites by sequential ion-exchange and calcination. The process is selective in the sense that the aluminium atoms within the pore structure of the zeolite remain virtually intact.
The surface dealuminated zeolites can be used, after loading with a gallium compound, as catalysts in hydrocarbon conversion reactions.

REFERENCES:
patent: 4487843 (1984-12-01), Telford et al.
Zeolite Molecular Sieves, Donald W. Breck, John Wiley & Sons, N.Y. 1974, Chapter Seven, pp. 529-590.

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