Influence of Structure-directing Agent on Zeolite Synthesis <Note>
To get more information concerning zeolite synthesis in the presence of 1-butanol (n-BuOH), influences of the alkali metal cation and the synthesis conditions on the zeolite synthesis were investigated. It was found that highly crystalline TON (Theta-1), MER (Merlinoite) and LTL (L) type zeolites were synthesized when KOH was employed as an alkali source, whereas MFI (ZSM-5) and MOR (Mordenite)type zeolites for NaOH. Characterization of zeolites obtained was conducted using X-ray diffraction, scanning electron microscopy, FT-IR, thermal analysis, 13C and 27Al MAS NMR. From the results of FT-IR and 13C CP MAS NMR measurements of as-made zeolites, it was concluded that n-BuOH molecules were occluded in the zeolitic pores of TON and MFI type zeolites, while no n-BuOH molecules for MOR, MER and LTL type zeolites.
Journal of the Chemical Society of Japan : chemistry and industrial chemistry
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Copyright (c) 1999 The Chemical Society of Japan
Graduate School of Engineering