Production of concentrated biocidal solutions
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United States of America Patent
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Apr 23, 2002
Grant Date -
N/A
app pub date -
Sep 8, 2000
filing date -
Sep 8, 2000
priority date (Note) -
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Abstract
The production process comprises A) forming acidic aqueous solution comprising alkali metal cations, bromide anions, and sulfamate anions; B) feeding into said aqueous solution a source of alkali metal cations and chlorine-containing bromide oxidant proportioned to keep the resultant aqueous medium acidic and to form an acidic product solution containing at least about 5 wt % of active bromine; and C) raising the pH of the aqueous product solution with water-soluble base to at least about 10.
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