Method for producing chlorine dioxide and removing chlorine dioxide using chemically impregnated zeolite
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United States of America Patent
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Nov 12, 1996
Issued Date -
N/A
app pub date -
May 19, 1995
filing date -
Nov 13, 1992
priority date (Note) -
Expired
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Abstract
A method for producing chlorine dioxide by moving fluid (such as air) relative to a first bed of zeolite crystals impregnated with sodium chlorine and/or zeolite crystals impregnated with chlorine, and by moving the fluid relative to a second bed of zeolite crystals impregnated with one of the following: phosphoric acid, acetic acid and citric acid. The first and second beds may be physically mixed together. A further aspect of the present invention relates to removing chlorine dioxide from a fluid by moving the fluid relative to a bed of zeolite crystals impregnated with one of the following: potassium hydroxide, sodium sulfite, sodium bisulfate and ferrous sulfate. This method may be used to remove chlorine dioxide produced using the method for producing chlorine dioxide described above.
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