Process and device for treating liquids with cation exchangers a

Details Process and device for treating liquids with cation exchangers a Process and device for treating liquids with cation exchangers a

1985-06-11

1987-02-24

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210679, 210685, 210189, 210275, 210290, B01J 4900

Patent

active

046456040

ABSTRACT:
Upward-flow process for treating liquids in ion exchange filters containing cation exchangers and anion exchangers in separate layers arranged one on top of the other, in which the cation and anion exchangers are separated from one another by a resin layer which does not participate in the ion exchange, the anion exchanger is regenerated externally and the cation exchanger, which remains in the filter, is regenerated in the counter-current and the anion exchanger is removed from and recycled to the filter without whirling up the separating layer and cation exchanger layer. The invention furthermore relates to a new counter-current ion exchange filter for carrying out the process.

REFERENCES:
patent: 3915861 (1975-10-01), Marquardt
patent: 4264439 (1981-04-01), Lefevre et al.
patent: 4298696 (1981-11-01), Emmett
patent: 4400278 (1983-08-01), Martinola

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