The process of alquilacao an aromatic compound, process of alquilacao of biphenyl, alquilacao process of benzene, composition of catalyst and process of preparation of catalyst

摘要

Aromatic compounds, such as benzene or biphenyl, are alkylated with an alkylating agent, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted polycyclic aromatic compounds enriched in the para alkylated isomers, such as p-diisopropyl-benzene or p,p min -di(isopropyl)biphenyl, respectively. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and Symmetry Index. The p,p min -disubstituted isomers of aromatic compounds are useful as monomers in the preparation of thermotropic, liquid crystal polymers.