Method for rendering visible the line of separation between cati

Details Method for rendering visible the line of separation between cati Method for rendering visible the line of separation between cati

1985-03-29

1987-05-19

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210686, B01J 4704

Patent

active

046666087

ABSTRACT:
Method for rendering visible the line of separation between cation exchangers and anion exchangers in mixed-bed filters, in which method an amount of a cation exchanger (anion exchanger) sufficient to form a visible line is added to the cation exchangers and anion exchangers constituting the mixed-bed, the added ion exchanger clearly differing optically from the cation exchanger and anion exchanger used to build up the mixed-bed and having a density 0.01-0.05 g/ml lower (higher) than that of the mixed-bed cation exchanger (mixed-bed anion exchanger), and the resin beads of which predominantly having the same particle sizes as the finest (coarsest) screen fraction of the mixed-bed cation exchanger (mixed-bed anion exchanger).

REFERENCES:
patent: 2666741 (1954-01-01), McMullen
patent: 4151332 (1979-04-01), Chong et al.
patent: 4473664 (1984-09-01), Ziarkowski et al.
patent: 4523996 (1985-06-01), Charles et al.
patent: 4537911 (1985-08-01), Chonde

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