Ys. Bhat et al., EFFECT OF EXTRUSION AND SILYLATION OF ZSM-5 ON PARA SELECTIVITY OF DIETHYLBENZENES, Applied catalysis. A, General, 122(2), 1995, pp. 161-168
Zeolite extrusion using an alumina binder in different proportions and
its effect on the selectivity for the para isomer in diethylbenzenes
during ethylbenzene ethylation with ethanol is reported. The study als
o includes the silylation of extrudates of zeolites with different Si/
Al ratios to enhance the para selectivity. It was observed that in the
presence of binder the diethylbenzenes fraction contained less pain i
somer due to increased isomerization of primary product of alkylation.
As compared to pure zeolite, the extrudates required a higher amount
of silica deposition to enhance the para selectivity.