Water treatment by ion exchange resin

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

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Details

210696, 210757, C02F 508, C02F 142

Patent

active

042870720

ABSTRACT:
In the treatment of water by the use of a cationic and/or anionic exchange resin, catalyzed hydrazine compound is added to the feed water to alleviate the iron fouling of the ion exchange resin.

REFERENCES:
patent: 4022711 (1977-05-01), Noack
patent: 4026664 (1977-05-01), Noack
patent: 4039443 (1977-08-01), Tahara et al.
Betz Handbook of Industrial Water Conditioning, 7th Edition, (1976), p. 88.

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