Process for increasing the exchange yield in ion exchange proces

Details Process for increasing the exchange yield in ion exchange proces Process for increasing the exchange yield in ion exchange proces

1978-05-26

1980-04-15

Hart, Charles N.

Liquid purification or separation

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

Responsive to fluid flow

210 31R, 210 34, B01D 1504

Patent

active

041982959

ABSTRACT:
A process for increasing the exchange yield in ion exchange processes is disclosed wherein at least one reaction fraction stored with the previous carrying out of the same exchange reaction, a solution of the exchanging ions supplied from outside and water are delivered to a washed ion exchanger bed which is filled with water and which is charged with the ions which are to be exchanged; and after the discharge from the bed of the water and of a solution obtained as product, the same number of reaction fractions with the same volume is collected and stored as the number as that previously supplied, in order to be delivered as previously with the next carrying out of the same exchange reaction in the identical manner and in the same sequence, and wherein displacement occurring in the direction of flow and relatively to one another of those liquid particles which are delivered simultaneously or in immediate succession to the bed is substantially prevented until the discharge from the container of the bed is reached, and the co-ion content of the reaction fraction or fractions is kept constant by keeping constant the volume of the reaction fraction or fractions, of the solution supplied from outside and of the liquids discharged from the system and of the co-ion content of the solution supplied from outside.

REFERENCES:
patent: 2447135 (1948-08-01), Pick et al.
patent: 2660558 (1953-11-01), Juda
patent: 3448043 (1969-06-01), Vajna
patent: 3531401 (1970-09-01), Crits
patent: 3645921 (1972-02-01), Salem et al.
patent: 3918906 (1975-11-01), Small et al.

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