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Extraction of silica and alumina from coal fly ash for the synthesis of zeolites

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dc.citedby13
dc.contributor.authorKamarudin R.A.en_US
dc.contributor.authorMatlob A.S.en_US
dc.contributor.authorJubri Z.en_US
dc.contributor.authorRamli Z.en_US
dc.contributor.authorid23067175400en_US
dc.contributor.authorid35753601600en_US
dc.contributor.authorid35778292400en_US
dc.contributor.authorid8626374500en_US
dc.date.accessioned2023-12-28T07:30:42Z
dc.date.available2023-12-28T07:30:42Z
dc.date.issued2009
dc.description.abstractThis paper reports the extraction of soluble silicates and aluminates from coal fly ash using microwave irradiation from a domestic microwave oven. Fifteen experimental conditions for the extraction were obtained using Box-Behnken design through manipulation of three variables namely sodium hydroxide (NaOH) concentration, power level of microwave irradiation and exposure time; each variable has three values. The variables with their values were; NaOH concentration (2, 4 and 6 M), exposure time to microwave irradiation (1, 3.5 and 6 min) and power level of the irradiation (10, 50 and 100 Watts). Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) was used to study the amount of silicon and aluminium in the extracts. The extracted silicates and aluminates (after the molar ratio of SiO2 to Al2O 3 was adjusted to unity by adding aluminium foil) were further incubated at 95�C for 72 hours. The products isolated from the 14 experiments were characterized by their XRD images and found to be Na-A zeolites, gibbsite and sodalite octahydrate. �2009 IEEE.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo5398608
dc.identifier.doi10.1109/ICEENVIRON.2009.5398608
dc.identifier.epage461
dc.identifier.scopus2-s2.0-77949623028
dc.identifier.spage456
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-77949623028&doi=10.1109%2fICEENVIRON.2009.5398608&partnerID=40&md5=552f99e2c87e397629653d90455c24e6
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/29667
dc.pagecount5
dc.sourceScopus
dc.sourcetitleICEE 2009 - Proceeding 2009 3rd International Conference on Energy and Environment: Advancement Towards Global Sustainability
dc.subjectFly ash
dc.subjectMicrowave
dc.subjectSilica
dc.subjectZeolites
dc.subjectAluminum
dc.subjectAluminum foil
dc.subjectCoal ash
dc.subjectEmission spectroscopy
dc.subjectFly ash
dc.subjectInductively coupled plasma
dc.subjectIrradiation
dc.subjectMetal recovery
dc.subjectMicrowave devices
dc.subjectOptical emission spectroscopy
dc.subjectSilica
dc.subjectSilicate minerals
dc.subjectSilicon oxides
dc.subjectSodium
dc.subjectStoves
dc.subjectSustainable development
dc.subjectX ray diffraction
dc.subjectZeolites
dc.subjectBox-Behnken design
dc.subjectCoal fly ash
dc.subjectExperimental conditions
dc.subjectExposure-time
dc.subjectGibbsites
dc.subjectInductively coupled plasma-optical emission spectroscopy
dc.subjectMolar ratio
dc.subjectNaOH concentration
dc.subjectPower levels
dc.subjectSilica zeolites
dc.subjectSodium hydroxides
dc.subjectXRD
dc.subjectMicrowave irradiation
dc.titleExtraction of silica and alumina from coal fly ash for the synthesis of zeolitesen_US
dc.typeConference paperen_US
dspace.entity.typePublication
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