Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1992-09-18
1994-10-04
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041825, 204151, 210670, B01D 6144, C02F 1469
Patent
active
053523458
ABSTRACT:
The present invention provides an improved process for the regeneration of ion exchange gels and resins. Exhausted regenerating solutions from a either a cationic or anionic exchange column are converted into fresh regenerating solutions via one or a combination of electrodialysis units having at least one bipolar membrane. The spent regenerants may be treated in an electrodialytic water splitter, an acid or base purification unit, or any combination thereof, to reclaim as much or as little of the regenerating solution as is required by the particular process.
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"Electrodialysis for Recovering Acid and Caustic from Ion-Exchange Regeneration Wastes" Industrial & Engineering Chem Product Research & Development, Babu R. Nott. vol. 20, Mar. 1981, pp. 170-177.
Byszewski Carolyn
Mani Krishnamurthy N.
McArdle John C.
Allied-Signal Inc.
Friedenson Jay P.
Harding Karen A.
Niebling John
Phasge Arun S,.
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