| 摘要 |
Chlorine dioxide is formed by reaction between an alkali metal chlorate and hydrochloric acid in aqueous reaction medium in a reaction zone. Water is evaporated from the reaction medium and removes the chlorine dioxide and chlorine from the reaction zone. The reaction medium is formed by electrolyzing an aqueous solution of an alkali metal chloride to form an aqueous solution of an alkali metal chlorate and hydrogen, the alkali metal chlorate being fed to the reaction zone. Hydrogen chloride is formed by reaction of approximately one-third of the mole amount of the hydrogen and chlorine and fed to the reaction zone. Water is also fed to the reaction zone.
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