Elsevier

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Volume 74, Issue 8, August 1995, Pages 1226-1231
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Synthesis of zeolites by alkaline activation of ferro-aluminous fly ash

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Abstract

Zeolites were synthesized from fly ash by alkaline hydrothermal activation. High-Fe fly ash from the Teruel power station in NE Spain was the starting material. The activation was performed by 0.1 M NaOH and KOH solution in a closed system. Zeolite formation was studied as a function of temperature (60 and 150°C), reaction time (24, 168 and 336 h) and sample/solution ratio (30, 60, 100 and 200 gl−1). The zeolitic products synthesized were phillipsite, merlinoite, analcime, zeolite Na-P1 and nosean. Other reaction products identified were portlandite and bayerite. The activated material in the fly ash was mainly glass and quartz. The highest zeolite synthesis efficiency was 75%.

References (18)

  • F. Mondragón et al.

    Fuel

    (1990)
  • D.H. Klein et al.

    Environ. Sci. Technol.

    (1975)
  • D.G. Coles et al.

    Environ. Sci. Technol.

    (1979)
  • W.L. Stout et al.
  • H. Höller et al.

    Fortschr. Mineral.

    (1985)
  • N. Shigemoto et al.

    Nippon Kagaku Kaishi

    (1992)
  • N. Shigemoto et al.

    J. Mater. Sci.

    (1993)
  • R.M. Barrer

    Hydrothermal Chemistry of Zeolites

    (1982)
  • H. Höller

    Contrib. Mineral. Petrol.

    (1970)
There are more references available in the full text version of this article.

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