Synthesis of magnesium aluminate spinel by calcination of aluminum recycled from discarded PV solar panels with bischofite

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dc.creatorRamos, Ivan David Ezequiel
dc.creatorSham, Edgardo Ling
dc.creatorBarrios Torres, Oriana Coromoto
dc.creatorBarbosa, Lucía Isabel
dc.creatorOrosco, Roberto Pablo
dc.date2025-03
dc.date.accessioned2026-03-10T16:02:22Z
dc.date.available2026-03-10T16:02:22Z
dc.descriptionDisposal of discarded photovoltaic solar panels has emerged as a significant environmental concern as they are classified as hazardous electronic waste. However, significant benefits can be gained by strategically recovering valuable materials from this waste. The objective of this study was to utilize aluminum recovered from the frame of a discarded PV solar panel to synthesize magnesium aluminate spinel (MgAl2O4). The synthesis method investigated involved chlorination roasting, employing bischofite (MgCl2·6H2O) as the chlorinating agent. Initially, the frame was separated from the discarded panel, size-reduced and subjected to leaching. The resulting powder was then mixed with bischofite. The mixture was calcined under isothermal and non-isothermal conditions to investigate the influence of temperature and reaction time on the synthesis.Additionally, the effect of the chlorination roasting atmosphere, including air and nitrogen atmospheres, was assessed. Different studies, including thermodynamic calculations, X-ray diffractometry (XRD), and scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDS) were conducted to elucidate the reactions and mechanism involved in the synthesis process. The results showed that AlOOH, Al2O3·H2O, Mg3(OH)5Cl·4H2O and Mg2(OH)3Cl·4H2O are the intermediate products generated during the synthesis process. Magnesium aluminate spinel begins to form at 700 °C, with the optimal operating conditions identified at 700 °C and 120 min.
dc.descriptionFil: Ramos, Ivan David Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina
dc.descriptionFil: Sham, Edgardo Ling. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina
dc.descriptionFil: Barrios Torres, Oriana Coromoto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina
dc.descriptionFil: Barbosa, Lucía Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina
dc.descriptionFil: Orosco, Roberto Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación y Desarrollo en Materiales Avanzados y Almacenamiento de Energía de Jujuy - Universidad Nacional de Jujuy. Centro de Investigación y Desarrollo en Materiales Avanzados y Almacenamiento de Energía de Jujuy - Gobierno de la Provincia de Jujuy. Centro de Investigación y Desarrollo en Materiales Avanzados y Almacenamiento de Energía de Jujuy; Argentina
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dc.identifierhttp://hdl.handle.net/11336/273643
dc.identifierRamos, Ivan David Ezequiel; Sham, Edgardo Ling; Barrios Torres, Oriana Coromoto; Barbosa, Lucía Isabel; Orosco, Roberto Pablo; Synthesis of magnesium aluminate spinel by calcination of aluminum recycled from discarded PV solar panels with bischofite; Springer; Journal of Thermal Analysis and Calorimetry; 150; 7; 3-2025; 5083-5098
dc.identifier1388-6150
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://ri.unju.edu.ar/handle/123456789/615
dc.languageeng
dc.publisherSpringer
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10973-025-14100-3
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subjectALUMINUM RECYCLING
dc.subjectMAGNESIUM ALUMINATE SPINEL
dc.subjectDISCARDED SOLAR PV PANELS
dc.subjectCERAMIC
dc.subjectPYROMETALLURGY
dc.subjectBISCHOFITE
dc.subjecthttps://purl.org/becyt/ford/2.4
dc.subjecthttps://purl.org/becyt/ford/2
dc.titleSynthesis of magnesium aluminate spinel by calcination of aluminum recycled from discarded PV solar panels with bischofite
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion
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