Process for dealuminization of the synthetic zeolites of large p

Details Process for dealuminization of the synthetic zeolites of large p Process for dealuminization of the synthetic zeolites of large p

1991-11-26

1994-05-10

Dees, Carl F.

Chemistry of inorganic compounds

Zeolite

Isomorphic metal substitution

423DIG27, 423714, 502 60, C01B 3334, B01J 2018, B01J 2904

Patent

active

053105346

ABSTRACT:
A process is provided for dealuminization of zeolites having large pores, the diameter of the aperture of the pores being greater than or equal to about 0.7 nm and the silica/alumina ratio greater than or equal to about 6. The process comprises acid leaching of the raw zeolite containing the structuring agent.
The dealuminized zeolites obtained are useful as catalysts for the transformation of hydrocarbons and as selective organophilic adsorbents.

REFERENCES:
patent: 3442795 (1969-05-01), Kerr et al.
patent: 4414189 (1983-11-01), Kokotailo et al.
patent: 4851200 (1989-07-01), Ryan
patent: 4916097 (1990-04-01), Chu et al.
patent: 5116794 (1992-05-01), Skeels et al.

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