Concentrated aqueous bromine solutions and their preparation
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United States of America Patent
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Oct 9, 2001
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N/A
app pub date -
Sep 18, 2000
filing date -
Jun 1, 1998
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Abstract
A concentrated liquid biocide composition is produced by a process which comprises continuously or intermittently feeding (i) bromine chloride into mixing apparatus where the bromine chloride contacts (ii) an aqueous solution of alkali metal salt of sulfamic acid. An aqueous product is produced having an active bromine content of at least 100,000 ppm (wt/wt), and an atom ratio of nitrogen to active bromine from (i) and (ii) greater than 0.93:1. The desired product can be withdrawn from the mixing apparatus continuously or intermittently.
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