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Producing amorphous white silica from rice husk

The aim of this paper is to investigate the effects of various acid treatments of the rice husk (RH) on removal of its metallic ingredients and determine the percentage of silica and metallic ingredients contained in the RH. Leaching of RH in diluted HCl proved to be effective in substantially remov...

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Main Authors: Matori, Khamirul Amin, M.M. , Haslinawati, Abd. Wahab, Zaidan, Abd. Aziz, Sidek, Tan, Kar Ban, Wan Ab. Karim Ghani, Wan Azlina
Format: Article
Language:English
Published: MASAUM Network 2009
Online Access:http://psasir.upm.edu.my/id/eprint/16353/1/Producing%20amorphous%20white%20silica%20from%20rice%20husk.pdf
http://psasir.upm.edu.my/id/eprint/16353/
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spelling my.upm.eprints.163532015-10-22T01:13:21Z http://psasir.upm.edu.my/id/eprint/16353/ Producing amorphous white silica from rice husk Matori, Khamirul Amin M.M. , Haslinawati Abd. Wahab, Zaidan Abd. Aziz, Sidek Tan, Kar Ban Wan Ab. Karim Ghani, Wan Azlina The aim of this paper is to investigate the effects of various acid treatments of the rice husk (RH) on removal of its metallic ingredients and determine the percentage of silica and metallic ingredients contained in the RH. Leaching of RH in diluted HCl proved to be effective in substantially removing most of the metallic ingredients. Pre-heat treatment of RH at 500 °C for 1 hour and continue at 800 °C for 2 hours are required for complete combustion of RH to white ash. Ash residues obtained from acid-treated samples were completely white in colours. The acid treatment of RH does not affect the amorphicity of the silica. 5% HF and 5% HNO 3 are used to digest the rice husk ash (RHA). Inductively coupled plasma was used to characterize the percentage of the silica and metallic ingredients contained in the RH. MASAUM Network 2009-10 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/16353/1/Producing%20amorphous%20white%20silica%20from%20rice%20husk.pdf Matori, Khamirul Amin and M.M. , Haslinawati and Abd. Wahab, Zaidan and Abd. Aziz, Sidek and Tan, Kar Ban and Wan Ab. Karim Ghani, Wan Azlina (2009) Producing amorphous white silica from rice husk. MASAUM Journal of Basic and Applied Sciences, 1 (3). pp. 512-515. ISSN 2076-0841
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The aim of this paper is to investigate the effects of various acid treatments of the rice husk (RH) on removal of its metallic ingredients and determine the percentage of silica and metallic ingredients contained in the RH. Leaching of RH in diluted HCl proved to be effective in substantially removing most of the metallic ingredients. Pre-heat treatment of RH at 500 °C for 1 hour and continue at 800 °C for 2 hours are required for complete combustion of RH to white ash. Ash residues obtained from acid-treated samples were completely white in colours. The acid treatment of RH does not affect the amorphicity of the silica. 5% HF and 5% HNO 3 are used to digest the rice husk ash (RHA). Inductively coupled plasma was used to characterize the percentage of the silica and metallic ingredients contained in the RH.
format Article
author Matori, Khamirul Amin
M.M. , Haslinawati
Abd. Wahab, Zaidan
Abd. Aziz, Sidek
Tan, Kar Ban
Wan Ab. Karim Ghani, Wan Azlina
spellingShingle Matori, Khamirul Amin
M.M. , Haslinawati
Abd. Wahab, Zaidan
Abd. Aziz, Sidek
Tan, Kar Ban
Wan Ab. Karim Ghani, Wan Azlina
Producing amorphous white silica from rice husk
author_facet Matori, Khamirul Amin
M.M. , Haslinawati
Abd. Wahab, Zaidan
Abd. Aziz, Sidek
Tan, Kar Ban
Wan Ab. Karim Ghani, Wan Azlina
author_sort Matori, Khamirul Amin
title Producing amorphous white silica from rice husk
title_short Producing amorphous white silica from rice husk
title_full Producing amorphous white silica from rice husk
title_fullStr Producing amorphous white silica from rice husk
title_full_unstemmed Producing amorphous white silica from rice husk
title_sort producing amorphous white silica from rice husk
publisher MASAUM Network
publishDate 2009
url http://psasir.upm.edu.my/id/eprint/16353/1/Producing%20amorphous%20white%20silica%20from%20rice%20husk.pdf
http://psasir.upm.edu.my/id/eprint/16353/
_version_ 1643826189021741056
score 13.211869

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