Synthesis strategies of alumina from aluminum saline slags

Grande López, Lucía; Vicente, Miguel Ángel; Korili, Sophia A.; Gil Bravo, Antonio

Publication:
Synthesis strategies of alumina from aluminum saline slags

dc.contributor.author	Grande López, Lucía
dc.contributor.author	Vicente, Miguel Ángel	es_ES
dc.contributor.author	Korili, Sophia A.
dc.contributor.author	Gil Bravo, Antonio
dc.contributor.department	Ciencias	es_ES
dc.contributor.department	Zientziak	eu
dc.contributor.department	Institute for Advanced Materials and Mathematics - INAMAT2	en
dc.contributor.funder	Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa	es
dc.date.accessioned	2023-03-16T08:49:16Z
dc.date.available	2023-03-16T08:49:16Z
dc.date.issued	2023
dc.date.updated	2023-03-15T11:56:50Z
dc.description.abstract	Aluminum saline slags is a waste of the metallurgical industry that presents serious environmental problems since it needs very extensive areas for its disposal, the toxicity it causes in the atmosphere and groundwater, in addition to high transportation costs. The valorization of this residue by the synthesis of alumina, a compound widely used in the chemical industry, generates a high impact and great interest. In this work, the strategies for synthesizing alumina from aluminum saline slags are reviewed in a context of growing demand for this metal and environmental crisis. The first sections present the aluminum production processes, both from natural bauxite (primary process) and from the recycling of materials with a high aluminum content (secondary process); paying attention to the waste generated and what environmental problems they produce. The main investigations that have allowed to address the recovery of the waste generated are described below, focusing on the processes of recovery/extraction of the aluminum present in its composition. The aluminum in these residues can be found as a metal or forming other compounds such as simple or mixed oxides. Chemical processes are the most relevant, especially those that deal with the acid and alkaline extraction of the metal. The most important section of the work reports on the methods of synthesis of Al2O3, highlighting the methods of precipitation, sol-gel, hydrothermal synthesis, and combustion, among others. The work ends with a summary and conclusions section.	en
dc.description.sponsorship	Spanish Ministry of Science and Innovation (MCIN/AEI/10.13039/501100011033) through project PID2020-112656RB-C21. Open access funding provided by Universidad Pública de Navarra.	en
dc.format.mimetype	application/pdf	en
dc.identifier.citation	Grande, L., Vicente, M. A., Korili, S. A., Gil, A. (2023) Synthesis strategies of alumina from aluminum saline slags. Process Safety and Environmental Protection, 172, 1010-1028. https://doi.org/10.1016/j.psep.2023.03.006.	en
dc.identifier.doi	10.1016/j.psep.2023.03.006
dc.identifier.issn	0957-5820
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/44920
dc.language.iso	eng	en
dc.publisher	Elsevier	en
dc.relation.ispartof	Process Safety and Environmental Protection, 172 (2023 ) 1010-1028	en
dc.relation.projectID	info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/	en
dc.relation.publisherversion	https://doi.org/10.1016/j.psep.2023.03.006
dc.rights	© 2023 The Author(s). This is an open access article under the CC BY-NC-ND license.	en
dc.rights.accessRights	Acceso abierto / Sarbide irekia	es
dc.rights.accessRights	info:eu-repo/semantics/openAccess	en
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	Aluminum	en
dc.subject	Alumina	en
dc.subject	Saline slags	ene
dc.subject	Leaching	en
dc.subject	Precipitation method	en
dc.subject	Aluminum hydroxide	en
dc.title	Synthesis strategies of alumina from aluminum saline slags	en
dc.type	Artículo / Artikulua	es
dc.type	info:eu-repo/semantics/article	en
dc.type.version	Versión publicada / Argitaratu den bertsioa	es
dc.type.version	info:eu-repo/semantics/publishedVersion	en
dspace.entity.type	Publication
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