Study on the of MCM-41-supported for the hydroxylation of naphthalene to naphthol

摘要

Prepared by impregnation of MCM-41 molecular sieve, zeolite and modified MCM-41; to load 5% of modified Fe/MCM-41 zeolite catalyst, the reaction temperature 60°C, reaction time 8h, hydrogen peroxide 2mL, naphthalene under 1000mg, Fe/MCM-41 catalyst 100mg conditions, naphthalene conversion rate of 5.8% and a selectivity of 45.7%. MCM-41 not only can better maintain the characteristics of the modified hexagonal structure of MCM-41 molecular sieve, and in the hydroxylation reaction of naphthalene-naphthol in the performance of certain catalytic activity in different solvents (acetic acid, acetonitrile, methanol, ethanol, ethyl acetate), hydroxylation of naphthalene tests showed the best solvent was acetonitrile.