GAS PHASE CATALYTIC PROCESS FOR THE MANUFACTURE OF CYANOGEN CHLORIDE FROM CHLORINE AND HYDROGEN CYANIDE

摘要

1398917 Cyanogen chloride DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT 2 Nov 1972 [4 Nov 1971] 50472/72 Heading C1A Chlorine and hydrogen cyanide are reacted in the gas phase in the presence of a catalyst comprising graphite. The catalyst may contain inert materials such as porcelain, quartz, or metallic nickel, the inert material being usually present in an amount of from 20-60% by weight. The reaction is usually conducted at a temperature between 200-600‹ C., the reactants being in equimolar ratio. The gas mixture may be diluted with an inert gas such as nitrogen or carbon dioxide. The cyanogen chloride product may be isolated in known manner, e.g. by absorption in organic solvents.