Crystallization of MFI and MEL zeolites from clear solutions

Autor: R. Szostak, Antonio Fonseca, Rosaria Chiappetta, Flaviano Testa, Janos B. Nagy, Rosario Aiello
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