Patent ID: 6306281
Filing Date: 2001-10-23
Classification: C02F,C25B

Abstract:
An electrolytic process for generating a stable solution of chlorine dioxide, which process comprises the steps of:a) preparing an aqueous solution containing chlorite ions in a concentration of about 10 to about 80,000 ppm;b) adding a buffering agent and/or an acid to the aqueous chlorite solution in an amount sufficient to control the pH of the chlorine dioxide solution at a pH of about 9.5 or below after electrolysis;c) passing the buffered and/or acidified aqueous chlorite solution through an electrolytic cell containing an anode and a cathode, but no membrane, to electrolyze the chlorite to chlorine dioxide and generate the stable solution of chlorine dioxide; andd) optionally diluting the stable solution of chlorine dioxide to a concentration effective for disinfecting, sanitizing, or deodorizing.