The Dow Chemical Company

Lewis M Brown

Donald I Townsend

Paul J Vona, Jr

A method is disclosed for producing hydrohalic acids, using a Diesel engine for a reactor. In a typical operation for producing hydrochloric acid, the engine fuel is a liquid phase mixture containing a hydrocarbon, such as Diesel fuel oil, and one or more halogenated organic compounds, such as carbon tetrachloride and propylene dichloride. The liquid phase fuel is injected into the combustion chamber of the engine, where it is vaporized, ignited and burned. In the resulting combustion reaction, hydrochloric acid is formed as a vapor phase. The acid can then be recovered as a vapor phase or an aqueous solution.

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Freeland, MI, United States of America

Lewis M Brown