Apparatus for producing deionized water

Details Apparatus for producing deionized water Apparatus for producing deionized water

1998-03-18

2000-06-06

Phasge, Arun S.

Chemistry: electrical and wave energy

Apparatus

Electrophoretic or electro-osmotic apparatus

204634, B01D 6148

Patent

active

060713976

ABSTRACT:
An apparatus for producing deionized water comprising an electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged between a cathode and an anode to form demineralizing compartments and concentrating compartments, and ion exchange resin particles packed in the demineralizing compartments, wherein the ion exchange resin particles are a mixture of at least two groups of ion exchange resin particles having a particle size distribution such that particles having particle sizes of from 75 to 125% of the average particle size, are at least 85 wt % of the total amount, and the average particle size of a group of ion exchange resin particles having the maximum average particle size, is at least 1.5 times the average particle size of a group of ion exchange resin particles having the minimum average particle size.

REFERENCES:
patent: 5154809 (1992-10-01), Oren et al.
patent: 5759373 (1998-06-01), Terada et al.
Patent Abstracts of Japan, vol. 18, No. 61 (C-1160), Feb. 02, 1994, & Derwent Absracts, AN 93-373712, JP 5-277344, Oct. 26, 1993.

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