Shape-selective alkylation of naphthalene with isopropanol over mordenite catalysts

Chunshan Song, Stephen Kirby

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Naphthalene alkylation with isopropanol was studied at 250°C using several proton-form mordenites (HM) and Y-zeolites. HM catalysts afforded 2-isopropylnaphthalene (2-IPN) as the dominant product, whereas the Y-zeolites (HY and LaHY) gave 1-IPN as a major product. HM displayed better selectivity to 2-IPN and 2,6-diisopropylnaphthalene (2,6-DIPN), although HY showed higher activity for naphthalene conversion. HM catalysts with SiO2/Al2O3 ratios of 20-35 appear to be effective for shape-selective synthesis of 2-IPN and 2,6-DIPN. These catalysts displayed over 73% β-selectivity to 2-IPN among the two IPN isomers, and over 65% β,β′-selectivity to the desired 2,6-DIPN among all DIPN isomers with 2,6-DIPN/2,7-DIPN ratios of about 3. The isopropanol-to-naphthalene ratios and the solvent type are also influential for both activity and selectivity of mordenite catalysts.

Original languageEnglish (US)
Pages (from-to)467-476
Number of pages10
JournalMicroporous Materials
Issue number5
StatePublished - Jun 1994

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Materials Science
  • General Engineering


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