Liquid purification or separation – Processes – Chemical treatment
Patent
1997-08-01
1999-08-24
Woo, Jay H.
Liquid purification or separation
Processes
Chemical treatment
210765, 25218621, 25218637, 423511, 423579, C02F 150
Patent
active
059421266
ABSTRACT:
A stabilized aqueous alkali or alkaline earth metal hypobromite solution is prepared by mixing an aqueous solution of alkali or alkaline earth metal hypochlorite having from about 5 percent to about 70 percent available halogen as chlorine with a water soluble bromide ion source; allowing the bromide ion source and the alkali or alkaline earth metal hypochlorite to react to form a 0.5 to 70 percent by weight aqueous solution of unstabilized alkali or alkaline earth metal hypobromite; adding to the unstabilized solution of alkali or alkaline earth metal hypobromite a suitable stabilizer such as a carbonic acid, hydrogen cyanide, carboxylic acid, amino acid, sulfuric acid, phosphoric acid or boric acid; and recovering a stabilized aqueous alkali or alkaline earth metal hypobromite solution.
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Dallmier Anthony W.
McCoy William F.
Breininger Thomas M.
Cummings Kelly L.
Nalco Chemical Company
Prince Fred
Woo Jay H.
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