Vr. Choudhary et al., Alkylation of benzene by benzyl chloride over H-ZSM-5 zeolite with its framework Al completely or partially substituted by Fe or Ga, CATAL LETT, 59(2-4), 1999, pp. 217-219
Liquid-phase benzylation of benzene by benzyl chloride to diphenylmethane o
ver H-ZSM-5, H-gallosilicate(MFI), H-galloaluminosilicate(MFI), H-ferrosili
cate(MFI) and H-ferroaluminosilicate(MFI) zeolites at 80(degrees)C has been
investigated. A complete or partial substitution of Al in H-ZSM-5 zeolite
by Fe or Ga results in a drastic increase in the catalytic activity of the
zeolite in the benzylation process. The redox function of the zeolite is re
latively more important than its acid function in the benzylation process.