Process for separating salts in aqueous streams

Liquid purification or separation – Processes – Ion exchange or selective sorption

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Details

210673, 210686, B01D 1504

Patent

active

044787227

ABSTRACT:
An improved ion retardation method for separating mixtures of salts in aqueous solution is disclosed. In this method, an ion retardation resin containing excess strong base groups is employed wherein the strong base groups have associated therewith a counteranion for which the strong base group has less affinity than for the anion of the salt which is last eluted from the resin.

REFERENCES:
patent: 3041292 (1962-06-01), Hatch
patent: 4235717 (1980-11-01), Lee et al.

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