Process for generating stabilized bromine compounds
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United States of America Patent
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Dec 9, 2003
Grant Date -
Nov 21, 2002
app pub date -
Apr 16, 2001
filing date -
Apr 16, 2001
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Expired
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Abstract
Active bromine-containing solutions are produced and stabilized by reacting bromate and bromide salt solutions with an amino-complexing agent, such as sulfamic acid or sulfamate salt. The reaction is performed at a pH of less than 1 to create a complexed hypobromate. The pH of the active bromine-containing solution is raised to between 4 and 10 by adding an alkali to improve stability. Moreover, the solution is maintained below 30.degree. C. during the alkali addition to retain bromine equivalent activity.
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