Process for the preparation of tetrachlorophthalodinitrile by catalytic vapor-phasechlorination of o-phthalodinitrile

• Main Authors: SAITO SHIGERU, HAGA ATSUSHI
• Format: Patent
• Language: English
• Published: 10.02.1965
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

Tetrachlorophthalodinitriles, are produced by mixing o-phthalodinitrile in a vapour state and chlorine gas and passing the mixture continuously in a vapour state over an active carbon catalyst maintained at a temperature between 200-450 DEG C. so as to produce a catalytic chlorination of the o-phtha...