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6) toluene disproportionation, silylation of TUN zeolite provided a
higher selectivity towards xylenes, higher xylene/benzene ratios
as well as higher selectivity to p-xylene,
7) toluene alkylation with isopropyl alcohol, both dealumination
and desilication decreased the selectivity to p-cymene,
8) the highest selectivity to p-cymene of about 90% was achieved on
silylated TUN zeolite with a simultaneous increase in selectivity
to cymenes.
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