Process for producing rare earth exchanged crystalline aluminosi

Details Process for producing rare earth exchanged crystalline aluminosi Process for producing rare earth exchanged crystalline aluminosi

1973-12-13

1978-11-14

Meros, Edward J.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

252455Z, C01B 3328

Patent

active

041255917

ABSTRACT:
A process for preparing rare earth exchanged zeolite X and zeolite Y having improved activity and stability. The process of this invention involves partially exchanging sodium forms of zeolite X and zeolite Y with a solution of rare earth ions; calcining the partially exchanged zeolites; and further exchanging the calcined partially exchanged zeolites to replace remaining alkali metal ions.

REFERENCES:
patent: 3140253 (1964-07-01), Plank et al.
patent: 3271418 (1966-09-01), Plank et al.
patent: 3293192 (1966-12-01), Maher et al.
patent: 3402996 (1968-09-01), Maher et al.

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