Generation of chlorine dioxide in a non-aqueous medium

Details Generation of chlorine dioxide in a non-aqueous medium Generation of chlorine dioxide in a non-aqueous medium

1993-05-19

1995-04-11

Stoll, Robert L.

Compositions

Oxidative bleachant, oxidant containing, or generative

Free halogen or oxy-halogen acid type

25218636, 25218723, 25218724, 25218725, 25218726, 25218727, 423477, 423478, C01B 1102, C01B 1110

Patent

active

054055490

ABSTRACT:
A method of preparing chlorine dioxide in a non-aqueous liquid is disclosed. An aqueous solution of chlorine dioxide is mixed and agitated with a non-aqueous liquid. The chlorine dioxide is extracted into the non-aqueous liquid. In a preferred embodiment, an aqueous chlorite solution is added to a quantity of non-aqueous liquid. Acid is added to the aqueous phase to generate chlorine dioxide. The phases are vigorously agitated to extract the chlorine dioxide into the non-aqueous phase. High concentrations of very pure chlorine dioxide are obtainable. In another preferred embodiment, chlorine is prepared in a non-aqueous liquid and is mixed and agitated with an aqueous chlorite solution. Separation of the aqueous and non-aqueous phases provides pure solutions of chlorine dioxide in the non-aqueous liquid. Very pure aqueous solutions of chlorine dioxide are prepared by mixing and agitating non-aqueous solutions of chlorine dioxide with water. A reactant useful in oxidation, synthesis, disinfecting and sterilizing comprising chlorine dioxide dissolved in a non-aqueous liquid is disclosed.

REFERENCES:
patent: 4105549 (1978-08-01), Kobayashi et al.
CA71(15):70256c.
Quentin, K. E. "Determination of Chlorine Dioxide and Chlorite in Drinking-Water" Z. Wasser Abwasser Forsch, 1984, pp. 50-62.

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