ETHYLATION OF TOLUENE OR ETHYLBENZENE WITH HIGH SILICA/ALUMINA ZSM-5 TYPE CATALYST

摘要

ETHYLATION OF TOLUENE OR ETHYLBENZENE WITHHIGH SILICA/ALUMINA ZSM-5 TYPE CATALYSTABSTRACT OF THE DISCLOSUREThe specification discloses a process forproducing ethyl toluene or diethylbenzene with minimalundesired by-product formation utilizing a zeolitecatalyst having a silica/alumina mole ratio greater thanabout 500. The starting materials are monoalkyl benzeneand an ethylating agent and the reaction is carried outat 250°C to 600°C and at a pressure of 0.1 to 100 atmos-pheres. The catalyst also has a constraint index ofapproximately 1 to 12.