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US 5,567,405 AGranted
Method for producing chlorine dioxide using chemically impregnated zeolite
AssigneeKlatte Inc.
InventorsFred Klatte, James Aamodt, David Biswell
Life of this patent
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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 chlorite and/or zeolite crystals impregnated with chlorine, and by moving the fluid relative to a second bed of zeolite crystals impregnated with at least one of the following: phosphoric acid, acetic acid and citric acid. The first and second beds may be physically mixed together.
Claims15
A method for producing chlorine dioxide, including the steps of:
- (a) moving a fluid containing oxygen through a first bed of impregnated zeolite crystals, which are impregnated with at least sodium chlorite;
- and
- (b) moving the fluid through a second bed of impregnated zeolite crystals, which are impregnated with at least one of the following impregnating agents:
- phosphoric acid, acetic acid, and citric acid, thereby producing the chlorine dioxide as a result of chemical reaction of the fluid and said sodium chlorite and said at least one of the impregnating agents.
1 more element
A method for producing chlorine dioxide, including the step of:
- moving a fluid containing oxygen through a mixture bed comprising a mixture of a first type of impregnated zeolite crystals and a second type of impregnated zeolite crystals, thereby producing the chlorine dioxide, with the first type of impregnated zeolite crystals comprising zeolite crystals impregnated with at least sodium chlorite, and with the second type of impregnated zeolite crystals comprising zeolite crystals impregnated with one of the following impregnating agents:
- phosphoric acid, acetic acid, and citric acid, whereby the chlorine dioxide is produced as a result of chemical reaction of the fluid and said sodium chlorite and said at least one of the impregnating agents.
Dependencies are inferred from the claim text.