Charged filter aid material and ion exchange bed

Details Charged filter aid material and ion exchange bed Charged filter aid material and ion exchange bed

1977-10-21

1980-02-26

Wyse, Thomas G.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210504, 210505, 210508, B01D 3702

Patent

active

041905326

ABSTRACT:
A method for preparing an improved filter material, together with the improved material prepared thereby and an improved method for removing impurities from a liquid. The filter material comprises a mixture of ion exchange resin particles and treated filter aid material. In the preferred embodiment, the ion exchange resin particles comprise a mixture of anion and cation exchange resin particles, and the filter aid material is treated with a chemical compound to produce a positive surface charge thereon. The filter aid material may be further treated with a second compound to produce an enhanced negative surface charge.

REFERENCES:
patent: 3242073 (1966-03-01), Guebert
patent: 3250702 (1966-05-01), Levendusky
patent: 3352424 (1967-11-01), Guebert
patent: 3600329 (1971-08-01), Enriquez
patent: 3835041 (1974-09-01), Grant
Problems of Chemistry and Physics of Power Plants.
The Performance and Possibilities of Application of Filters Utilizing Powdered Ion Exchange Resins, Aug. 27, 1968.
Balthazar, J., "Belgian Experience with Powdered Resin Filter", Trib. Cebedeaux, Oct. 1969.
Balthazar, J., "Methodical Investigations of Continuous Condensate Purification with Powdered Resin Alliuvial Filters", VGB Feed Water Convention, 1971.
Balthazar, J., "Ion Purification of Condensates by Powdered Resin Filters", Laborelec Report NI 14.S5.
Betz Handbook of Industrial Water Conditioning, 7th Edition, 1976, pp. 53-56.

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