Crystallization of MFI and MEL zeolites from clear solutions
Autor: | R. Szostak, Antonio Fonseca, Rosaria Chiappetta, Flaviano Testa, Janos B. Nagy, Rosario Aiello |
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Rok vydání: | 1997 |
Předmět: | |
Zdroj: | Zeolites. 18:106-114 |
ISSN: | 0144-2449 |
DOI: | 10.1016/s0144-2449(96)00133-9 |
Popis: | Pure MFI and MEL zeolites were obtained at 170°C from clear solutions of general composition SiO 2 : 0.0004 Al 2 O 3 : 0.30 Na[in2]O: aTAABr (or TAAOH): 40H 2 O with a = 0.03 –0.16 and TAA = TEA, TPA or TBA. The physicochemical characteristics (XRD, SEM, d.t.g., d.t.a., FT i.r., and multin.m.r.) allow one to compare the products obtained from the clear solution with those obtained from a hydrogel. |
Databáze: | OpenAIRE |
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