Microwave-assisted versus conventional synthesis of zeolite A from metakaolinite

This is a comparative study of the synthesis of zeolite A from metakaolinite using both conventional and microwave-assisted heating. The effects of reaction conditions on the rate of formation, crystallinity and actual % yield of zeolite A were investigated. Reaction parameters such as different NaO...

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Bibliographic Details
Published in:Microporous and mesoporous materials 2008-11, Vol.115 (3), p.527-534
Main Authors: Youssef, H., Ibrahim, D., Komarneni, S.
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Hydrothermal treatment
Ion-exchange
Kaolinite
Microwave
Porous materials
Seeding
Surface physical chemistry
Zeolite A
Zeolites: preparations and properties
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Summary:This is a comparative study of the synthesis of zeolite A from metakaolinite using both conventional and microwave-assisted heating. The effects of reaction conditions on the rate of formation, crystallinity and actual % yield of zeolite A were investigated. Reaction parameters such as different NaOH molarities (1.0–5.0 M), temperatures (70 and 80 °C), durations (1–8 h) as well as the effect of seeding percentage (1–4%) were tested. The rate of zeolite A formation was found to increase by 2–3 times in microwave treated samples with a notable enhancement in the product crystallinity and % yield whether seeded or un-seeded.
ISSN:1387-1811
1873-3093
DOI:10.1016/j.micromeso.2008.02.030