PARA-CHLORINATION OF AROMATIC COMPOUND

摘要

The present invention relates to a catalyst for preparing para-chloro aromatic compounds by the liquid-phase chlorination method. The catalyst is prepared by loading transition metal salts, rare earth metal salts or a mixture thereof, and alkali metal or alkaline earth metal chlorides having a melting point of 300 DEG C or more, by solid-state method or impregnation method, into zoelite L being ion-exchanged by alkali metal. The present invention also relates to a process for preparing para-isomers of the chlorinated compounds by using the catalyst. According to the present invention, the catalyst gives an excellent yield and para-selectivity of aromatic compound inchlorination compared to the catalyst of the prior art, in which transitional metal salt, rare earth metal salt, alkali metal salt or alkaline earth metal salt is added thereto.