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Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis

Doctor of Philosophy in Materials Engineering

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Bibliographic Details
Main Author: Faizul, Che Pa
Other Authors: Abdullah, Chik, Assoc. Prof.
Format: Thesis
Language:English
Published: School of Materials Engineering 2017
Subjects:
Agricultural waste
Citric acid
Silica
Oil palm ash
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78087
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spelling my.unimap-780872023-03-07T07:33:57Z Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis Faizul, Che Pa Abdullah, Chik, Assoc. Prof. Agricultural waste Citric acid Silica Oil palm ash Doctor of Philosophy in Materials Engineering Agricultural wastes such as oil palm ash have a possibility to be utilized as a useful renewable source for production of energy and silica (SiO2). Extensive researches have been carried out to extract silica from agricultural wastes, due to silica as a useful raw material for industrial application. Oil palm ash is one of the waste material from the palm oil industry where is was obtained from the burning process of solid waste such as empty fruit bunch, shell and fiber. Oil palm ash contains a large amount of silica. This study has been conducted to extract silica from palm ash by removing impurities using citric acid via leaching process. Various experimental parameters, such as acid concentration (1 to 6 %), reaction time (30 to 180 minutes), leaching temperature (30 to 90 C) and solid/liquid ratio (1:50 – 1:10) were investigated. Then, the effect of each parameter towards extraction process was evaluated using XRF, FTIR, XRD and SEM. The optimum extracting condition was achieved at 3% concentration of citric acid, 70C of solution temperature, 60 minutes of reaction time and 1:25 ratio of solid/liquid. XRF results show that the content of silica in treated palm ash can reach up to 92% after citric acid leaching treatment. The transmittance peaks at 798 - 778 cm-1 show that silica element is absent in the treated palm ash. Preliminary tests have shown that there is a possibility of using silica extracted from palm ash to synthesize zeolite. 2017 2023-03-07T07:31:50Z 2023-03-07T07:31:50Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78087 en Universiti Malaysia Perlis (UniMAP) School of Materials Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Agricultural waste
Citric acid
Silica
Oil palm ash
spellingShingle Agricultural waste
Citric acid
Silica
Oil palm ash
Faizul, Che Pa
Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis
description Doctor of Philosophy in Materials Engineering
author2 Abdullah, Chik, Assoc. Prof.
author_facet Abdullah, Chik, Assoc. Prof.
Faizul, Che Pa
format Thesis
author Faizul, Che Pa
author_sort Faizul, Che Pa
title Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis
title_short Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis
title_full Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis
title_fullStr Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis
title_full_unstemmed Citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis
title_sort citric acid leaching process for silica extracted from oil palm ash for zeolite synthesis
publisher School of Materials Engineering
publishDate 2017
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78087
_version_ 1772813068117475328
score 13.214268

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