Efficient recovery of aluminum from saline slag wastes

dc.contributor.authorYoldi Sangüesa, María
dc.contributor.authorFuentes Ordóñez, Edwin Gustavo
dc.contributor.authorKorili, Sophia A.
dc.contributor.authorGil Bravo, Antonio
dc.contributor.departmentZientziakeu
dc.contributor.departmentInstitute for Advanced Materials and Mathematics - INAMAT2en
dc.contributor.departmentCienciases_ES
dc.contributor.funderGobierno de Navarra / Nafarroako Gobernua, PI017 CORRALes
dc.date.accessioned2020-03-20T08:50:50Z
dc.date.available2020-08-20T23:00:13Z
dc.date.issued2019
dc.description.abstractThis work presents the procedure to improve the aluminum extracted from a hazardous waste from the recycling of aluminum, aluminum that could be used in the production of value-added materials, as well as with the generation of non-hazardous waste. The aluminum waste was treated under reflux and stirring with NaOH aqueous solutions taking into account two concentrations (1 and 2 mol/dm3), various times of extraction (1, 2 and 4 h) and 4th consecutive steps of extraction in order to obtain solutions with Al3+. The activation of the waste by milling is also analyzed. After extraction, the solution is filtered to separate an aqueous solution that contain the extracted Al3+ and a residual waste. A maximum of 7.54 g/dm3 of aluminum was extracted in the first step, for a total accumulated of 9.59 g/dm3 of aluminum. The extracted aluminum can be used to synthesize added-value products applied as adsorbents and catalysts. Finally, the residual waste generated was characterized by N2 adsorption at −196 °C, X-ray diffraction, X-ray fluorescence, energy-dispersive X-ray and scanning electron microscopy in order to apply it as in future works adsorbent or catalyst.en
dc.description.sponsorshipThe authors are grateful for financial support from the Spanish Ministry of Economy, Industry and Competitiveness (AEI/MINECO), the European Regional Development Fund (ERDF) and the Government of Navarra through projects MAT2016-78863-C2-1-R and PI017 CORRAL.en
dc.embargo.lift2020-08-20
dc.embargo.terms2020-08-20
dc.format.extent27 p.
dc.format.mimetypeapplication/pdfen
dc.identifier.doi10.1016/j.mineng.2019.105884
dc.identifier.issn0892-6875
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/36534
dc.language.isoengen
dc.publisherElsevieren
dc.relation.ispartofMinerals Engineering, 140, 2019, 105884en
dc.relation.projectIDinfo:eu-repo/grantAgreement/ES/1PE/MAT2016-78863/
dc.relation.publisherversionhttps://doi.org/10.1016/j.mineng.2019.105884
dc.rights© 2019 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0.en
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectIndustrial waste valorizationen
dc.subjectHigh-value-added productsen
dc.subjectAluminum extractionen
dc.subjectAlkaline extractionen
dc.subjectHazardous wasteen
dc.titleEfficient recovery of aluminum from saline slag wastesen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dspace.entity.typePublication
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relation.isAuthorOfPublicationf3db4da9-23a3-45b8-805a-52c6a6f0dfa8
relation.isAuthorOfPublicationc3e28e52-d0f3-4b9d-82a4-6b347c553c64
relation.isAuthorOfPublicationcd12e590-cb42-47d5-a642-f60eeee624ec
relation.isAuthorOfPublication.latestForDiscovery408129fc-1f21-42b6-b7a1-06541c530bad

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