Evidence for the synthesis of La-hexaaluminate from aluminum-containing saline slag wastes: correction of structural defects and phase purification at low temperature

Torrez Herrera, Jonathan Josué; Fuentes Ordóñez, Edwin Gustavo; Korili, Sophia A.; Gil Bravo, Antonio

Publication:
Evidence for the synthesis of La-hexaaluminate from aluminum-containing saline slag wastes: correction of structural defects and phase purification at low temperature

dc.contributor.author	Torrez Herrera, Jonathan Josué
dc.contributor.author	Fuentes Ordóñez, Edwin Gustavo
dc.contributor.author	Korili, Sophia A.
dc.contributor.author	Gil Bravo, Antonio
dc.contributor.department	Zientziak	eu
dc.contributor.department	Institute for Advanced Materials and Mathematics - INAMAT2	en
dc.contributor.department	Ciencias	es_ES
dc.contributor.funder	Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa	es
dc.date.accessioned	2021-03-10T13:53:52Z
dc.date.available	2023-01-02T00:00:11Z
dc.date.issued	2021
dc.description.abstract	The synthesis of a lanthanum hexaaluminate from the aluminum extracted from a saline slag waste is presented for the first time. Briefly, a refluxing 2 M solution of HCl is used to extract the aluminum, giving 8.9 gAl/dm3 along with other metals in lower concentrations. This solution is used to synthesize the hexaaluminate by mixing with a stoichiometric amount of lanthanum nitrate. The results showed the formation of pure phase hexaaluminate at 1473 K, as well as predominance of the hexaaluminate phase at temperatures of 1273 and 1373 K. These results also indicate that the pure hexaaluminate phase can be obtained at a much lower temperature than when commercial aluminum solutions are used improving the applications as catalyst and thermal barrier material. It was also found that the presence of other metals in solution allows the structural problems and purity of the La-hexaaluminate phase to be corrected when working with stoichiometric ratios.	en
dc.description.sponsorship	The authors are grateful for financial support from the Spanish Ministry of Economy, Industry and Competitiveness (AEI/MINECO), the European Regional Development Fund (ERDF) through project MAT2016-78863-C2-R. JJTH thanks Universidad Pública de Navarra for a pre-doctoral grant. AG and EGFO also thank Santander Bank for funding via the Research Intensification Program.	en
dc.embargo.lift	2023-01-02
dc.embargo.terms	2023-01-02
dc.format.extent	38 p.
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.1016/j.powtec.2020.08.087
dc.identifier.issn	1873-328X (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/39375
dc.language.iso	eng	en
dc.publisher	Elsevier	en
dc.relation.ispartof	Powder Technology, 2021, 377, 80-88	en
dc.relation.projectID	info:eu-repo/grantAgreement/ES/1PE/MAT2016-78863	en
dc.relation.publisherversion	https://doi.org/10.1016/j.powtec.2020.08.087
dc.rights	© 2020 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess	en
dc.rights.accessRights	Acceso abierto / Sarbide irekia	es
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	Aluminum industrial wastes	en
dc.subject	Waste valorization	en
dc.subject	Hexaaluminate	en
dc.subject	Saline slags	en
dc.title	Evidence for the synthesis of La-hexaaluminate from aluminum-containing saline slag wastes: correction of structural defects and phase purification at low temperature	en
dc.type	info:eu-repo/semantics/article	en
dc.type	Artículo / Artikulua	es
dc.type.version	info:eu-repo/semantics/acceptedVersion	en
dc.type.version	Versión aceptada / Onetsi den bertsioa	es
dspace.entity.type	Publication
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