Ion exchange system using U-tube principle

Liquid purification or separation – Processes – Ion exchange or selective sorption

Reexamination Certificate

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C210S095000, C210S275000, C210S284000, C210S289000

Reexamination Certificate

active

06843920

ABSTRACT:
This invention is a liquid separation system using ion exchange resin, adsorbent resin and catalytic resin based on U-tube principle. It is shown that relatively low fluid velocity is sufficient to maintain the resin bed in compacted state during the operation as well as during the regeneration processes so that high quality product, low regenerant consumption, and convenient operation are obtained.

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Degremont, “Water Treatment Handbook”, 5thEdition, John Wiley & Sons, 1979, pp. 319-320.
The Upcore System, “Upflow Countercurrent Regeneration System”. Dow Chemical Company, Form No. 177-01527-895 CH 171-280-E-0896 R.
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V.R. Davies, “Counter Current Ion Exchange Systems in Industrial and Utility Water Treatment”, Rohm and Haas Company, Mar. 1989.

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