Patent ID: 6428696
Filing Date: 2002-08-06
Classification: C01B,C02F

Abstract:
A process for production of a chlorine-dioxide containing disinfection solution immediately ready for treatment of water, said process comprising:producing an aqueous mixture containing a chlorite and a halogen-free oxidizing agent, wherein the oxidizing agent is present in an amount of between once and twice the stoichiometric amount necessary for oxidation of the chlorite to chlorine dioxide, adjusting the pH value of said aqueous mixture to between 5.5 and 9.5, reacting the chlorite with the oxidizing agent in said aqueous mixture to form a product solution containing chlorine dioxide without separation of said chlorine dioxide from said product solution, and continuing said reaction without separation of said chlorine dioxide from said product solution until said product solution is substantially free of chlorite and safe for direct addition in disinfecting effective amounts to water.