Stabilized polybromide resins and method of preparation
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United States of America Patent
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Jun 10, 1986
Grant Date -
N/A
app pub date -
Nov 26, 1984
filing date -
Nov 26, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Polybromide resin beads for disinfecting potable water are stabilized as to bromide content by: (A) initially charging excess bromine into an aqueous slurry of quaternary ammonium amine exchange resin beads; (B) removing external moisture to provide moist sticky beads; (C) passing gaseous drying agent at controlled temperature and velocity effective to gradually remove internal moisture and excess bromine; and (D) continuing the gradual drying until dry, free-flowing beads having less than 5% water and 17 to 47% bromine are obtained.
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