Ion exchange process with counter-current fractional regeneratio

Details Ion exchange process with counter-current fractional regeneratio Ion exchange process with counter-current fractional regeneratio

1977-07-22

1978-08-22

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 34, 210 37R, B01D 1506, C02B 176

Patent

active

041087666

ABSTRACT:
In an ion exchange process wherein an ion exchange bed is successively charged and discharged during an exchange cycle with an ion, here designated as "X" ion, with "Y" being used to designate the replacing ion and "Z" the oppositely charged ion associated with X and Y, by passing aqueous solutions of the ions through the bed, with the flow thereof during charging being in one direction and during discharging in the opposite direction; the improvement with respect to the discharge portion of the cycle starting with the bed charged with X ions and filled with water substantially free of X, Y and Z ions, comprising passing at least four groups of fractions through said bed, as follows:

REFERENCES:
patent: 3448043 (1969-06-01), Vajna

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