METHOD FOR PREPARING DIARYLETHANE

摘要

A method for preparing diarylethane is disclosed. Alkylation is carried out in a continuous type process at 100-300 DEG C under a pressure of 1-45 kg/cm<2> G in the presence of a solid acid catalyst while a reactant mixture comprising alpha-methylbenzylalcohol and at least one aromatic hydrocarbon at a volume ratio of 1:1-10, is fed at a weight hourly space velocity of 0.1-10 h<-1>. The alpha-methylbenzylalcohol acts as an alkylating agent. Diarylethane can be prepared at a low cost, but a high production yield by the method.