05795487 is referenced by 46 patents and cites 12 patents.

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.

Title
Process to manufacture stabilized alkali or alkaline earth metal hypobromite and uses thereof in water treatment to control microbial fouling
Application Number
8/778598
Publication Number
5795487
Application Date
January 3, 1997
Publication Date
August 18, 1998
Inventor
William F McCoy
Naperville
IL, US
Anthony W Dallmier
Naperville
IL, US
Agent
Thomas M Breininger
Kelly L Cummings
Assignee
Nalco Chemical Company
IL, US
IPC
C23F 11/08
C02F 1/50
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