Method for regenerating a weak base anion exchanger
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United States of America Patent
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Oct 28, 1980
Grant Date -
N/A
app pub date -
Jul 9, 1976
filing date -
Jul 9, 1975
priority date (Note) -
Expired
status (Latency Note)
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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 The regenerating chemical is a lime slurry having a concentration of 1 to 5% by weight, which is both supplied to and withdrawn from the granular mass in an evenly distributed flow with a flow rate of at least 10 m.sup.3, per hour, per m.sup.3 resin material (m.sup.3 /h/m.sup.3), while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.
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