Process to manufacture stabilized alkali or alkaline earth metal

Details Process to manufacture stabilized alkali or alkaline earth metal Process to manufacture stabilized alkali or alkaline earth metal

1997-01-03

1998-08-18

McCarthy, Neil

Liquid purification or separation

Processes

Chemical treatment

210764, 422 14, 423511, 423579, 8107, 81081, 8109, 8129, 811568, 811569, 8137, 252 94, 25218621, 25218636, 25218637, 2521871, C02F 150, C23F 1108

Patent

active

057954879

ABSTRACT:
The invention is a method for preparing a stabilized aqueous alkali or alkaline earth metal hypobromite solution. The method comprises the steps of:
a. 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;
b. 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;
c. Adding to the unstabilized solution of alkali or alkaline earth metal hypobromite an aqueous solution of an alkali metal sulfamate in a quantity to provide a molar ratio of alkali metal sulfamate to alkali or alkaline earth metal hypobromite is from about 0.5 to about 7; and,
d. Recovering a stabilized aqueous alkali or alkaline earth metal hypobromite solution.

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