Method for regenerating a weak base anion exchanger

Details Method for regenerating a weak base anion exchanger Method for regenerating a weak base anion exchanger

1976-07-09

1980-10-28

Castel, Benoit

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

210673, B01D 1506

Patent

active

042308070

ABSTRACT:
A method for regenerating a weak base anion exchanger which comprises passing a regenerating chemical in an upward direction through a granular resinous mass of an exchanger, thereupon displacing the chemical and rinsing the mass with water. The regenerating chemical is a lime slurry having a concentration of 1 to 5% by weight, which is both supplied to and withdrawn from the granular mass in an evenly distributed flow with a flow rate of at least 10 m.sup.3, per hour, per m.sup.3 resin material (m.sup.3 /h/m.sup.3), while the granular mass is in a compacted state.

REFERENCES:
patent: 2599558 (1952-06-01), Juda
patent: 2917368 (1959-12-01), Juda
patent: 3429835 (1969-02-01), Odland
patent: 3455819 (1969-07-01), Crits
patent: 3458436 (1969-07-01), Martinola et al.
patent: 3501401 (1970-03-01), Calmon
patent: 3709818 (1973-01-01), Gustafson

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