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Characterization and gravimetric analysis of the dissolved quartz in the conversion of coal fly ash to sodalite

Coal fly ash (CFA) is a waste product produced from the electrical power plant and hazardous towards the environment. However, the high composition of silica and alumina in the CFA makes it useful as raw materials in the zeolite synthesis. However, the presence of silica in the form of quartz in the...

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Main Authors: Mohamed, Mohd. Hilmi, Lintang, Hendrik Oktendy, Ramli, Zainab
Format: Article
Language:English
Published: 2012
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/46682/1/M.H.Mohamed_2012_Characterization%20and%20gravimetric%20analysis%20of%20the%20dissolved%20quartz%20in%20the%20conversion.pdf
http://eprints.utm.my/id/eprint/46682/
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spelling my.utm.466822017-09-18T03:28:53Z http://eprints.utm.my/id/eprint/46682/ Characterization and gravimetric analysis of the dissolved quartz in the conversion of coal fly ash to sodalite Mohamed, Mohd. Hilmi Lintang, Hendrik Oktendy Ramli, Zainab QD Chemistry Coal fly ash (CFA) is a waste product produced from the electrical power plant and hazardous towards the environment. However, the high composition of silica and alumina in the CFA makes it useful as raw materials in the zeolite synthesis. However, the presence of silica in the form of quartz in the CFA does not facilitate the transformation of CFA to zeolite at 100oC and autogeneous pressure. In this study, CFA was converted to zeolites in various NaOH concentrations by microwave heating at various heating time. All synthesized product were characterized by X-ray diffraction(XRD), and gravimetric analysis. XRD has shown that quite pure sodalite in nanosize has been formed as early as 15 minutes and increase with time. Prolong heating up to 45 minutes has reduced the content of quartz to ca 20%. Gravimetric analysis performed on the liquor of the reaction showed that the dissolved silica decrease with increase of heating time indicating that most of the dissolved quartz is used up to form sodalite framework. Hence, quartz of CFA did help in enhancing the crystallinity of the formed sodalite after prolong heating. 2012 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/46682/1/M.H.Mohamed_2012_Characterization%20and%20gravimetric%20analysis%20of%20the%20dissolved%20quartz%20in%20the%20conversion.pdf Mohamed, Mohd. Hilmi and Lintang, Hendrik Oktendy and Ramli, Zainab (2012) Characterization and gravimetric analysis of the dissolved quartz in the conversion of coal fly ash to sodalite. Malaysian Journal of Analytical Sciences, 16 (3). pp. 235-240. ISSN 1394-2506
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Mohamed, Mohd. Hilmi
Lintang, Hendrik Oktendy
Ramli, Zainab
Characterization and gravimetric analysis of the dissolved quartz in the conversion of coal fly ash to sodalite
description Coal fly ash (CFA) is a waste product produced from the electrical power plant and hazardous towards the environment. However, the high composition of silica and alumina in the CFA makes it useful as raw materials in the zeolite synthesis. However, the presence of silica in the form of quartz in the CFA does not facilitate the transformation of CFA to zeolite at 100oC and autogeneous pressure. In this study, CFA was converted to zeolites in various NaOH concentrations by microwave heating at various heating time. All synthesized product were characterized by X-ray diffraction(XRD), and gravimetric analysis. XRD has shown that quite pure sodalite in nanosize has been formed as early as 15 minutes and increase with time. Prolong heating up to 45 minutes has reduced the content of quartz to ca 20%. Gravimetric analysis performed on the liquor of the reaction showed that the dissolved silica decrease with increase of heating time indicating that most of the dissolved quartz is used up to form sodalite framework. Hence, quartz of CFA did help in enhancing the crystallinity of the formed sodalite after prolong heating.
format Article
author Mohamed, Mohd. Hilmi
Lintang, Hendrik Oktendy
Ramli, Zainab
author_facet Mohamed, Mohd. Hilmi
Lintang, Hendrik Oktendy
Ramli, Zainab
author_sort Mohamed, Mohd. Hilmi
title Characterization and gravimetric analysis of the dissolved quartz in the conversion of coal fly ash to sodalite
title_short Characterization and gravimetric analysis of the dissolved quartz in the conversion of coal fly ash to sodalite
title_full Characterization and gravimetric analysis of the dissolved quartz in the conversion of coal fly ash to sodalite
title_fullStr Characterization and gravimetric analysis of the dissolved quartz in the conversion of coal fly ash to sodalite
title_full_unstemmed Characterization and gravimetric analysis of the dissolved quartz in the conversion of coal fly ash to sodalite
title_sort characterization and gravimetric analysis of the dissolved quartz in the conversion of coal fly ash to sodalite
publishDate 2012
url http://eprints.utm.my/id/eprint/46682/1/M.H.Mohamed_2012_Characterization%20and%20gravimetric%20analysis%20of%20the%20dissolved%20quartz%20in%20the%20conversion.pdf
http://eprints.utm.my/id/eprint/46682/
_version_ 1643652108049711104
score 13.211869

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