Patent ID: 7252772
Filing Date: 2007-08-07
Classification: C01B,C02F

Abstract:
1. A method for preparation of an essentially chlorite-free, stable, aqueous chlorine-oxygen solution, whereby during the reaction sequence in an acid, aqueous medium, a peroxide compound and an aqueous chlorite solution are employed comprising the following steps: (1) Dissolving a hydrogen-sulfate compound in water; (2) Adding an acid to the aqueous hydrogen-sulfate-containing solution in such quantity that the pH value is held between approximately 3 and 5 in the targeted end product in the form of the essentially chlorite-free, stable, aqueous chlorine-oxygen solution; (3) Addition of a peroxide compound; (4) Drop-wise addition of an aqueous chlorite-solution in an amount of approximately 60 to 90 mol % of chlorite relative to the concentration of the peroxide compound.