Cyclic process for the efficient generation of chlorine dioxide in dilute solutions
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United States of America Patent
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Jul 12, 2011
Grant Date -
May 28, 2009
app pub date -
Jan 9, 2009
filing date -
Jun 22, 2005
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Expired
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Abstract
An efficient cyclic process and related compositions for the in-situ generation of chlorine dioxide from dilute solutions of chlorite anions at near neutral pH. The cyclic process provides a means of safe and effective use of chlorine dioxide with reduced concern of chlorite accumulation in the aqueous system. The disclosed chemistry used to support the cyclic process can be applied independently or in various combinations that are effectively inert. This dramatically reduces safety concerns since the chlorine dioxide is produced in-situ to the application and in dilute concentrations. Also, the process allows for regeneration of inert anions such as bromide and chlorite thereby reducing operating cost.
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