Progress of crystallization into zeolite beta in the absence of steam

S. Inagaki, K. Nakatsuyama, E. Kikuchi, Masahiko Matsukata

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    The role of steam on the crystallization of zeolite beta by the steam-assisted crystallization (SAC) method was studied. It was found that after an aluminosilicate dry gel with SiO2/Al2O3 molar ratio = 100 was treated with steam in an autoclave at 130°C and autogenous pressure, thermal treatment of a resultant product at 130°C without the addition of water in an autoclave gave zeolite beta with a high crystallinity. Zeolite beta obtained by this method consisted of nano-particles with a diameter of ca. 30 nm. It was presumed that intermediates of zeolite beta was formed during steam treatment, and the dehydration between silanols in the intermediates during the thermal treatment in the absence of steam possibly caused the transformation from ill-ordered structures to zeolite beta crystals with a periodicity in long-range order.

    Original languageEnglish
    Pages (from-to)343-350
    Number of pages8
    JournalStudies in Surface Science and Catalysis
    Volume158 A
    Publication statusPublished - 2005

    Fingerprint

    Zeolites
    Steam
    Crystallization
    steam
    crystallization
    autoclaves
    Autoclaves
    Heat treatment
    Aluminosilicates
    Dehydration
    dehydration
    periodic variations
    crystallinity
    Gels
    gels
    Crystals
    Water
    products
    water
    crystals

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Catalysis

    Cite this

    Progress of crystallization into zeolite beta in the absence of steam. / Inagaki, S.; Nakatsuyama, K.; Kikuchi, E.; Matsukata, Masahiko.

    In: Studies in Surface Science and Catalysis, Vol. 158 A, 2005, p. 343-350.

    Research output: Contribution to journalArticle

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