| 摘要 |
1,190,050. Tetrachloro - o - phthalonitrile. BADISCHE ANILIN- & SODA-FABRIK A.G. 8 Sept., 1967 [10 Sept., 1966], No. 41122/67. Heading C2C. Tetrachloro-o-phthalonitrile is continuously produced by reacting o-phthalonitrile with chlorine in the vapour phase in the presence of a catalyst comprising platinum and/or palladium supported on silicic acid and containing one or more alkali or alkaline earth metal phosphates or borates. The chlorine may be diluted with an inert gas e.g. nitrogen, hydrogen chloride or carbon tetrachloride. The reaction is preferably carried out at a temperature in the range 300-500‹ C. |
