Synthesis of zeolite Li-ABW from fly ash by fusion method.
In: Journal of hazardous materials, Jg. 170 (2009-10-30), Heft 2-3, S. 639-44
academicJournal
Zugriff:
The zeolite Li-ABW was synthesized by fusion method using fly ash as raw material. It comprised alkaline fusion followed by hydrothermal treatment in LiOH x H2O medium. Crystallinity of zeolite as high as 97.8% was attained under the following conditions: LiOH x H2O concentration, 3M; hydrothermal temperature, 180 degrees C; the corresponding aging time, 12 h. The content of Li-ABW increased at the expense of lithium aluminum silicate or quartz with an increase of LiOH x H2O concentration. With increasing hydrothermal temperature and aging time, the soluble species re-crystallized and crystalline phase transformation between different zeolites was observed. Scanning electron microscopy (SEM) observation revealed that the obtained zeolite Li-ABW was a rod-like crystal. The pore size distribution curve indicated the presence of mesopores.
Titel: |
Synthesis of zeolite Li-ABW from fly ash by fusion method.
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Autor/in / Beteiligte Person: | Yao, ZT ; Xia, MS ; Ye, Y ; Zhang, L |
Zeitschrift: | Journal of hazardous materials, Jg. 170 (2009-10-30), Heft 2-3, S. 639-44 |
Veröffentlichung: | Amsterdam : Elsevier,, 2009 |
Medientyp: | academicJournal |
ISSN: | 1873-3336 (electronic) |
DOI: | 10.1016/j.jhazmat.2009.05.018 |
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