Adjustably metered transfer of resin increments in folded bed io

Details Adjustably metered transfer of resin increments in folded bed io Adjustably metered transfer of resin increments in folded bed io

1983-05-31

1984-07-24

Cintins, Ivars C.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210189, 222 56, 222438, B01D 1504

Patent

active

044617100

ABSTRACT:
Adjustably metered transfer of resin increments in folded bed ion exchange systems are provided by a method and apparatus in which compacted liquid-containing resin granules are expelled from a column into a metering chamber which is filled to a level of a granule-retaining screen, the cut-off of the granule filling being signaled by liquid moving through the screen to a control level thereabove and/or by an increase in the hydraulic pressure of the liquid below the screen. In preferred embodiments the measuring chamber is provided with a flexible wall which is positioned to either increase or decrease the volume of the measuring chamber and thereby selectively vary the volume of the granule increment captivated by the chamber. The invention provides for the pulsing of resin increments of precisely and adjustably metered volume, and provides a means for keeping the loading and regeneration sides of the system in resin transfer balance.

REFERENCES:
patent: 2770395 (1956-11-01), Sebardt
patent: 3180825 (1965-04-01), Couvreur et al.
patent: 3627555 (1971-12-01), Driscoll
patent: 3964793 (1976-06-01), Volpeliere
patent: 3965000 (1976-06-01), Mikule et al.
patent: 4385993 (1983-05-01), Hedrick et al.

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