Abstract
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 language | English (US) |
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Pages (from-to) | 467-476 |
Number of pages | 10 |
Journal | Microporous Materials |
Volume | 2 |
Issue number | 5 |
DOIs | |
State | Published - Jun 1994 |
All Science Journal Classification (ASJC) codes
- General Chemistry
- General Materials Science
- General Engineering