Ion exchange process

Details Ion exchange process Ion exchange process

1977-02-02

1978-11-21

Wyse, Thomas G.

Liquid purification or separation

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

Responsive to fluid flow

210 35, B01D 1502, B01D 1506

Patent

active

041265483

ABSTRACT:
In a fixed-bed ion exchange process for treating a fluid, wherein adsorption and regeneration are performed in countercurrent flow, the whole ion exchange resins are removed from the ion exchange column portionwise, either intermittently or continuously, subjected to backwash and then returned to the ion exchange column. The whole bed of the resins is replaced by one round in this process, and therefore the distribution of the ions in the resin bed after backwash treatment is substantially the same as before, whereby a very efficient ion exchange is possible without increase in amount of the regenerant.

REFERENCES:
patent: 2855364 (1958-10-01), Roberts
patent: 2891007 (1959-06-01), Caskey et al.
patent: 3130151 (1964-04-01), Levendusky
patent: 3240699 (1966-03-01), Duff et al.
patent: 3386914 (1968-06-01), Hunter
patent: 3459306 (1969-08-01), Kanamori et al.
patent: 3595784 (1971-07-01), Butterworth
patent: 3607740 (1971-09-01), Akeroyd
patent: 3875053 (1975-04-01), Siegers

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