The Conversion Kinetics of Tincal to Boric Acid in Nitric Acid Solutions

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dc.authorid0000-0002-8574-1056en_US
dc.contributor.authorMehmet, Tunc
dc.contributor.authorHasan, Irem
dc.contributor.authorMuhtar, M. Kocakerim
dc.contributor.authorÇopur, Mehmet
dc.contributor.authorOzkan, Kucuk
dc.date.accessioned2021-03-20T20:09:33Z
dc.date.available2021-03-20T20:09:33Z
dc.date.issued2020
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.description.abstractPure borax and various boron compounds are produced from the solutions in which tincal is dissolved with various reagents. Economically important boron compounds such as boric acid, borax, boric oxide, and refined hydrated sodium borates and perborates are produced from boroncontaining ores. The production of boric acid by using nitric acid from tincal is more advantageous because it evaluates by-product NaNO3 as fertilizer production. In this study, the conversion kinetics of tincal to boric acid in nitric acid solutions were investigated by such parameters as particle size, 300-1500 mu m; acid concentration,0.5-4 mol/L; solid-to-liquid ratio 0.04-0.10 g/mL; stirring speed 20.93-62.8 s(-1), and reaction temperature, 30-60 degrees C. The conversion was found to increase with decreasing particle size and solid-to-liquid ratio and while it increased with increasing reaction temperature, acid concentration, and stirring speed. The conversion kinetics was examined using the heterogeneous and pseudo-homogeneous reaction models. The experimental results were found to be in better agreement with the correlation given in the following equation and the activation energy being 37.5 kJ/mol. ln(1-XHNO3/1-X-tincal)=(C-0,C-HNO3, 2C(0,tincal))kten_US
dc.identifier.doi10.30492/IJCCE.2020.37216en_US
dc.identifier.endpage90en_US
dc.identifier.issn1021-9986
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage83en_US
dc.identifier.urihttp://doi.org/10.30492/IJCCE.2020.37216
dc.identifier.urihttps://hdl.handle.net/20.500.12885/461
dc.identifier.volume39en_US
dc.identifier.wosWOS:000600018500008en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.institutionauthorÇopur, Mehmet
dc.language.isoenen_US
dc.publisherJihad Daneshgahien_US
dc.relation.ispartofIranian Journal Of Chemistry & Chemical Engineering-International English Editionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBoraxen_US
dc.subjectConversion kineticsen_US
dc.subjectNitric aciden_US
dc.subjectboric aciden_US
dc.titleThe Conversion Kinetics of Tincal to Boric Acid in Nitric Acid Solutionsen_US
dc.typeArticleen_US

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