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US 5,707,546 AGranted
Generation and storage of chlorine dioxide in a non-aqueous medium
AssigneeRio Linda Chemical Co., Inc.
InventorAnthony R. Pitochelli
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AssigneeRio Linda Chemical Co., Inc.
InventorAnthony R. Pitochelli
Estimating the term…
A method of preparing and storing a stable solution of chlorine dioxide in a non-aqueous, water-immiscible liquid. An aqueous solution of chlorine dioxide is vigorously mixed with a non-aqueous, water immiscible liquid and, in a single extraction, the chlorine dioxide is extracted into the non-aqueous liquid. The aqueous and non-aqueous phases are separated and the chlorine dioxide containing non-aqueous liquid is stored in a closed light-free environment. In an alternate embodiment, gaseous chlorine dioxide is introduced into the non-aqueous, water-immiscible liquid. Concentrations of 2,000 mg to 17,000 mg chlorine dioxide per liter are obtained. The chlorine dioxide in the non-aqueous liquid is stabilized for at least one month. A highly purified aqueous solution of chlorine dioxide is prepared by mixing the non-aqueous solution of chlorine dioxide with water and extracting chlorine dioxide into the water.
A method of preparing and storing for subsequent use, a stable solution of chlorine dioxide in a non-aqueous, water-immiscible hydrocarbon liquid comprising the steps of preparing chlorine dioxide in an aqueous solution, adding a non-aqueous water-immiscible hydrocarbon liquid to the aqueous solution and agitating the mixture vigorously to extract a concentration of chlorine dioxide into the non-aqueous water-immiscible hydrocarbon liquid in an amount sufficient to form a concentration of chlorine dioxide ranging from 1,822 to 17,200 mg/l in said liquid, allowing the mixture to separate into a non-aqueous water-immiscible hydrocarbon phase containing chlorine dioxide and an aqueous phase, placing the separated non-aqueous water-immiscible hydrocarbon phase containing said chlorine dioxide in a closed, opaque container, with the container providing a light-free environment to stabilize the chlorine dioxide for a period of at least one month of storage.
A method of preparing chlorine dioxide in a non-aqueous water-immiscible hydrocarbon liquid comprising the steps of dissolving chlorine in a non-aqueous water-immiscible hydrocarbon liquid, the non-aqueous water-immiscible hydrocarbon liquid being substantially non-reactive with chlorine and substantially non-reactive with chlorine dioxide;
A method for disinfecting and sterilizing a surface comprising the steps of dissolving by an extraction process about 2,000 mg to 17,000 mg of chlorine dioxide per liter of non-aqueous, water-immiscible hydrocarbon liquid to provide a concentrated solution, said concentrated solution stable for at least one month when stored in a light-free environment, diluting the concentrated solution with an additional volume of the non-aqueous water-immiscible hydrocarbon liquid to provide a concentration of chlorine dioxide sufficient to disinfect and sterilize and applying said diluted solution of chlorine dioxide to the surface to be disinfected and sterilized.
A method of preparing a highly purified aqueous solution of chlorine dioxide free from salts, acid, and chlorine, comprising the steps of preparing an aqueous solution of chlorine dioxide, adding a non-aqueous water-immiscible hydrocarbon liquid to the aqueous solution of chlorine dioxide thereby forming an aqueous phase and a non-aqueous water-immiscible liquid hydrocarbon phase, the non-aqueous water-immiscible hydrocarbon liquid being substantially non-reactive with chlorine dioxide;
A method of preparing, storing, and using a stable solution of chlorine dioxide comprising the steps of:
Dependencies are inferred from the claim text.