Extraction of high-purity silica from rice husk via hydrochloric acid leaching treatment

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dc.contributor.authorAzat, Seitkhan
dc.contributor.authorSartova, Zhanar
dc.contributor.authorBekseitova, Kalampyr
dc.contributor.authorAskaruly, Kydyr
dc.date.accessioned2019-12-11T08:21:45Z
dc.date.available2019-12-11T08:21:45Z
dc.date.issued2019
dc.descriptionhttp://journals.tubitak.gov.tr/chem/issues/kim-19-43-5/kim-43-5-4-1903-53.pdfen_US
dc.description.abstractThe present paper aimed at the investigation of the effect of preliminary acid treatment on the structure and purity of extracted silica. In this study, the acid leaching of rice husk (RH) in 2 M hydrochloric acid solution before the calcination process at 600 ◦ C was proposed to achieve completely white silica with high specific surface area and low content of impurities. RH, selected from the Almaty Region, Kyzylorda Region, and Turkestan Region was used as the main silica source. The results confirmed that the highest purity (98.2%–99.7%) amorphous silica with a specific surface area between 120 and 980 m2 g −1 could be extracted during acid treatment and controlled calcination. The structure is amorphous, porosity diameter decreased from 26.4 nm to 0.9 nm, and specific pore volume increased from 0.5 to 1.2 cm3 g −1 .en_US
dc.identifier.citationAzat, S., Sartova, Z., Bekseitova, K., & Askaruly, K. (2019). Extraction of high-purity silica from rice husk via hydrochloric acid leachingtreatment. Turkish Journal Of Chemistry, 43(5), 1258–1269. doi: 10.3906/kim-1903-53en_US
dc.identifier.other10.3906/kim-1903-53
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/4371
dc.language.isoenen_US
dc.publisherSCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAKen_US
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectRice husken_US
dc.subjectrice husk ashen_US
dc.subjectsilicaen_US
dc.subjecthydrochloric acid leachingen_US
dc.titleExtraction of high-purity silica from rice husk via hydrochloric acid leaching treatmenten_US
dc.typeArticleen_US
workflow.import.sourcescience

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