Patent ID: 6051135
Filing Date: 2000-04-18
Classification: C01B,C02F,Y02W

Abstract:
An apparatus for making chlorine dioxide comprising:A an acid storage tank comprising inlet means for accepting at least one acid and an outlet means for withdrawing an aqueous acid solution from said acid storage tank;B a chlorite ion storage tank comprising inlet means for accepting an alkali metal salt of a chlorite ion and an outlet means for withdrawing said alkali metal salt of a chlorite ion from said chlorite ion storage tank;C mixing means for mixing said alkali metal salt of a chlorite ion and said aqueous acid solution to provide an aqueous reaction solution, said mixing means being in fluid communication with said outlet means of said chlorite ion storage tank and said outlet means of said acid storage tank;D reacting means in fluid communication with said mixing means for reacting said aqueous reaction solution to provide a product solution, said reacting means comprising an outlet means for withdrawing said product solution;E stripping means for stripping chlorine dioxide present in said product solution from said product solution and into a gas to provide a product gas and a stripped product solution, said stripping means being in fluid communication with said outlet means of said reacting means; andF absorbing means for absorbing chlorine dioxide present in said product gas to provide an aqueous chlorine dioxide solution.