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AssigneeBayer Aktiengesellschaft
InventorsHeinrich Konigshofen, Dieter W. Bruck, Alfred Nierth, Marko Zlokarnik, Hans-Jorg Uhlmann
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An improved process for the production of cyanogen chloride is disclosed according to which liquid hydrocyanic acid and gaseous chlorine are reacted in an aqueous medium. The liquid hydrocyanic acid and chlorine are introduced into a column-shaped reactor via at least one two-component nozzle. The reaction mixture is removed at the head of the column-shaped reactor. Preferably, the hydrocyanic acid is in liquid form and the chlorine is in gaseous form. By the process disclosed, quantitative yields of cyanogen chloride are obtained separately from aqueous solutions of hydrochloric acid of a strength suitable for commercial use.
In a process for the production of cyanogen chloride by contacting hydrocyanic acid and chlorine in an aqueous medium, the improvement wherein liquid hydrocyanic acid and gaseous chlorine are fed into a bubble column via at least one two component nozzle concurrently with water and the reaction mixture comprising cyanogen chloride, hydrochloric acid and water is removed from the head of said bubble column and worked up to separate therefrom gaseous cyanogen chloride and aqueous hydrochloric acid.
Dependencies are inferred from the claim text.