Process for removal of undissolved impurities from ion...

Details Process for removal of undissolved impurities from ion... Process for removal of undissolved impurities from ion...

C - Chemistry, Metallurgy

02

F

361/1

C02F 1/42 (2006.01) B01J 49/00 (2006.01)

Patent

CA 1071776

ABSTRACT OF THE DISCLOSURE A process for scrubbing undissolved impurities from the upper portion of an ion exchange resin filtration bed is disclosed wherein air is introduced in the upper portion of the bed and develops a pressure within the vessel. This pressure subsequently forces rinse water down through the upper portion of the bed and out of the vessel. The gas is introduced into the bed and the water is drained therefrom at a level below the bed's upper surface but above a substantial lower portion of the resin bed. In this manner, lesser quantities of scrubbing fluids are required and the majority of the resin material is left undisturbed to maintain maximum ion exchange capacity.

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