Synthesis of Zeolites and Zeotypes by Hidrothermal Transformation of Kaolinite and Metakaolinite
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad de Pamplona
2007
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| _version_ | 1876478131856998400 |
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| author | C.A. Ríos |
| author_facet | C.A. Ríos |
| contents | Synthesis of Zeolites and Zeotypes by Hidrothermal Transformation of Kaolinite and Metakaolinite C.A. Ríos C.D. Williams M.J. Maple Química SEM XRD FTIR sodalite Synthesis The synthesis of zeolitic materials by hydrothermal transformation of kaolinite andmetakaolinite in NaOH solutions of various concentrations was investigated between100 and 200°C, over different reaction times, using in some cases precipitated SiO2or organic templates. Materials were obtained, including clathrasils: cancrinite (CAN),sodalite (SOD), and Linde Type A (LTA), faujasite (FAU), Na-P1 (GIS), analcime(ANA) and nepheline hydrate I (JBW) zeolites. In general, co-crystallization of CANand SOD, likely via an unstable LTA zeolite intermediate, was observedafter dissolution of kaolinite at low temperature; although the feldspathoids tend tobe unstable at high temperature. LTA zeolite was synthesized after metakaolinitereaction, with minor amount of FAU zeolite, ANA and SOD. Solids were characterizedby powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR),scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). 2007 artículo científico 0120-4211 https://www.redalyc.org/articulo.oa?id=90350103 en http://www.redalyc.org/revista.oa?id=903 Bistua: Revista de la Facultad de Ciencias Básicas application/pdf Universidad de Pamplona Bistua: Revista de la Facultad de Ciencias Básicas (Colombia) Num.1 Vol.5 |
| format | Artículo científico |
| id | redalyc_90350103 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Universidad de Pamplona |
| spellingShingle | Synthesis of Zeolites and Zeotypes by Hidrothermal Transformation of Kaolinite and Metakaolinite C.A. Ríos Química SEM XRD FTIR sodalite Synthesis Synthesis of Zeolites and Zeotypes by Hidrothermal Transformation of Kaolinite and Metakaolinite C.A. Ríos C.D. Williams M.J. Maple Química SEM XRD FTIR sodalite Synthesis The synthesis of zeolitic materials by hydrothermal transformation of kaolinite andmetakaolinite in NaOH solutions of various concentrations was investigated between100 and 200°C, over different reaction times, using in some cases precipitated SiO2or organic templates. Materials were obtained, including clathrasils: cancrinite (CAN),sodalite (SOD), and Linde Type A (LTA), faujasite (FAU), Na-P1 (GIS), analcime(ANA) and nepheline hydrate I (JBW) zeolites. In general, co-crystallization of CANand SOD, likely via an unstable LTA zeolite intermediate, was observedafter dissolution of kaolinite at low temperature; although the feldspathoids tend tobe unstable at high temperature. LTA zeolite was synthesized after metakaolinitereaction, with minor amount of FAU zeolite, ANA and SOD. Solids were characterizedby powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR),scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). 2007 artículo científico 0120-4211 https://www.redalyc.org/articulo.oa?id=90350103 en http://www.redalyc.org/revista.oa?id=903 Bistua: Revista de la Facultad de Ciencias Básicas application/pdf Universidad de Pamplona Bistua: Revista de la Facultad de Ciencias Básicas (Colombia) Num.1 Vol.5 |
| title | Synthesis of Zeolites and Zeotypes by Hidrothermal Transformation of Kaolinite and Metakaolinite |
| topic | Química SEM XRD FTIR sodalite Synthesis |
| url | https://www.redalyc.org/articulo.oa?id=90350103 |