Patent ID: 7618655
Filing Date: 2009-11-17
Classification: A61K,A61P,C01B,Y02A

Abstract:
1. Method for the preparation of aqueous solutions of reactive chlorine compounds, comprising: (a) reacting chlorine dioxide with an aqueous solution of hydrogen peroxide or another hydroperoxide or peroxide at a pH value of ≧6.5, to produce a gasous free reactive chlorine compound and a dissolved reactive chlorine compound, (b) lowering the pH value to 3 to 6 by adding an acid, (c) expelling the gaseous free reactive chlorine compound with a cooled gas and collecting the dissolved chlorine compound in a basic solution with a pH value of >10, and (d) incubating the collected dissolved reactive chlorine compound with up to 100-fold excess of chlorite at a pH value of 6 to 8.