PROCESS FOR PRODUCTION OF CHLORINE DIOXIDE

摘要

A process for continuously producing chlorine dioxide comprising the steps of: feeding to a reactor an acid, a reducing agent and alkali metal chlorate; reacting the alkali metal chlorate with the acid and the reducing agent to form a product stream containing chlorine dioxide and the alkali metal salt of the acid; and, bringing said product stream from the reactor to an absorption tower, where it is contacted with a flow of water to form an aqueous solution containing chlorine dioxide containing from about 4 to about 12 g/liter of chlorine dioxide and from about 1.1 to about 3.8 moles of sulfate per mole Cl02, wherein the pH of said aqueous solution is from about 0.1 to about 1.