Method and system for ion-exchanging particles

Details Method and system for ion-exchanging particles Method and system for ion-exchanging particles

1976-03-08

1977-09-13

Dees, Carl F.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

23288C, 423332, 252455Z, F01C 1902, B01J 800, B01J 2906

Patent

active

040482847

ABSTRACT:
Disclosed are a method and system for ion-exchanging cations in zeolitic particles of a size useful in fluidized bed processes; for example, zeolitic microspheres of the type employed in fluidized bed hydrocarbon conversion processes. The zeolitic particles are ion-exchanged by a stagewise countercurrent contact with ion-exchange liquid as they are moved in series over a continuously moving horizontal vacuum belt filter in the form of a thin porous cake, then into an agitated tank where the cake is formed into a slurry, and to another continuously moving vacuum belt filter where the microspheres are again formed into a thin porous cake. The latter cake is contacted with incoming ion-exchange liquid that percolates through the cake, passes to the agitated tank and is charged to the cake on the first belt filter.

REFERENCES:
patent: 3943233 (1976-03-01), Swanson et al.

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