Method for separating sodium and potassium by ion exchange

Details Method for separating sodium and potassium by ion exchange Method for separating sodium and potassium by ion exchange

1990-09-07

1991-11-19

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210681, 423181, B01D 1504

Patent

active

050664042

ABSTRACT:
A method for separating sodium and potassium from an aqueous solution containing such metals, which comprises selectively ion-exchanging sodium and potassium with titania hydrate (TiO.sub.2 .multidot.nH.sub.2 O where n=1 to 2) obtained by treating potassium titanate to remove potassium therefrom, followed by a reaction at a temperature of from 25.degree. to 80.degree. C. to desorb and purify sodium and potassium.

REFERENCES:
patent: 3522187 (1970-07-01), Kraus
patent: 3598548 (1971-08-01), Grinstead

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