Properties of ZSM-5 type zeolites related to the SiO2/Al2O3 ratio
β Scribed by Berak, J. M. ;Kanik, B. ;Eysymontt, P. ;Mejsner, J.
- Book ID
- 112683539
- Publisher
- Springer
- Year
- 1984
- Tongue
- English
- Weight
- 236 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0133-1736
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A series of beta zeolites with various ratios has been syn-SiO 2 /Al 2 O 3 thesized. These samples were characterized with respect to crystallinity, particle size, acidity and sorption capacities of water, n-hexane and cyclohexane. The conversion of 1,3,5-trimethylbenzene (TrMB) was conducted in a Γ
Levyne-type zeolites were synthesized from gels of initial compositions 4.5Na,O--6MeQIPsA120, 3OSiO,-SOOH,O. with MeQ =methylquinuclidinium and 0.6 5 I 2 3 at 150 5 t 2 190' C. The '"Si NMR spectra show the presence of two crystallographically different sites in the structure. The 27A1 NMR spectra a