Method for producing chlorine dioxide using chemically impregnated zeolite
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United States of America Patent
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Mar 24, 1998
Grant Date -
N/A
app pub date -
Aug 28, 1996
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 (e.g. flowing the fluid through) a first bed of zeolite crystals impregnated with at least one of the following: phosphoric acid, acetic acid and citric acid, and then moving the fluid relative to a second bed of zeolite crystals impregnated with sodium chlorite and/or zeolite crystals impregnated with chlorine. Optionally, at least some of the produced chlorine dioxide is absorbed by moving the fluid relative to (e.g., flowing the fluid through) a third bed of chemically impregnated zeolite crystals.
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