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Increasing the sustainability of copper electrorefining: Selective electrodeposition of antimony in the presence of bismuth from highly concentrated hydrochloric acid effluents

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Increasing the sustainability of copper electrorefining: Selective electrodeposition of antimony in the presence of bismuth from highly concentrated hydrochloric acid effluents

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dc.contributor.author Hernández-Pérez, Lorena es_ES
dc.contributor.author Muñoz-Perez, Alejandro es_ES
dc.contributor.author Ortega Navarro, Emma María es_ES
dc.contributor.author Pérez-Herranz, Valentín es_ES
dc.contributor.author Montañés, Maria-Teresa es_ES
dc.contributor.author Martí Calatayud, Manuel César es_ES
dc.date.accessioned 2024-12-16T19:07:05Z
dc.date.available 2024-12-16T19:07:05Z
dc.date.issued 2024-04 es_ES
dc.identifier.uri http://hdl.handle.net/10251/212963
dc.description.abstract [EN] Recovering critical materials from effluents of the copper electrorefining would improve the circularity and sustainability of this industry. In this task, selectivity is crucial to separate metals present in multi-component electrolytes and obtain added value products. Electrodeposition can be used to recover metals individually when their reduction takes place at different potentials. Moreover, the preferential deposition of a specific element can also be modulated under galvanostatic control. In this study, the recovery and separation of antimony and bismuth from highly concentrated hydrochloric acid solutions is investigated by means of voltammetry and electrodeposition. In potentiostatic mode, the preferential deposition of antimony takes place at -0.25 VAg/AgCl, although a moderate selectivity is achieved. Under galvanostatic mode, at current densities below the limiting value (i_L), the deposition of bismuth is almost prevented, and the selectivity factor for antimony reaches the highest values. These results prove the feasibility of a highly selective antimony recovery by electrodeposition. When the i_L is exceeded, the selectivity towards antimony drops because more cathodic potentials are reached, which activate the deposition of bismuth and hydrogen evolution, thus decreasing the overall electrodeposition current efficiency. Upon an increase in the proportion of bismuth in the mixtures, high current densities also favor the deposition of this metal but decrease the contribution of hydrogen evolution reaction as compared to solutions with a higher proportion of antimony. Thus, the process can also be conducted at high electrodeposition current densities, yet at the cost of obtaining the product in the form of an alloy. es_ES
dc.description.sponsorship The authors thank the financial support from the Agencia Estatal de Investigacion (AEI/10.13039/501100011033) (Spain) under the project PCI2019-103535 and by FEDER A way of making Europe. Funding for open access charge: CRUE-Universitat Politecnica de Valencia. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Journal of Environmental Chemical Engineering (Online) es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Antimony es_ES
dc.subject Bismuth es_ES
dc.subject Selective electrodeposition es_ES
dc.subject Critical raw materials es_ES
dc.subject Effluent treatment es_ES
dc.subject Metal recovery es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Increasing the sustainability of copper electrorefining: Selective electrodeposition of antimony in the presence of bismuth from highly concentrated hydrochloric acid effluents es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.jece.2024.112005 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PCI2019-103535/ES/ELECTRO-ELECTRODIALISIS APLICADA A LA INDUSTRIA DE PROCESAMIENTO DE MINERALES DE COBRE PARA LA RECUPERACION DE ANTIMONIO DE LAVADOS DE MINAS Y RECICLAJE DE LA DISOLUCION/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials es_ES
dc.description.bibliographicCitation Hernández-Pérez, L.; Muñoz-Perez, A.; Ortega Navarro, EM.; Pérez-Herranz, V.; Montañés, M.; Martí Calatayud, MC. (2024). Increasing the sustainability of copper electrorefining: Selective electrodeposition of antimony in the presence of bismuth from highly concentrated hydrochloric acid effluents. Journal of Environmental Chemical Engineering (Online). 12(2). https://doi.org/10.1016/j.jece.2024.112005 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.jece.2024.112005 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 12 es_ES
dc.description.issue 2 es_ES
dc.identifier.eissn 2213-3437 es_ES
dc.relation.pasarela S\507890 es_ES
dc.contributor.funder AGENCIA ESTATAL DE INVESTIGACION es_ES
dc.contributor.funder European Regional Development Fund es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
dc.subject.ods 06.- Garantizar la disponibilidad y la gestión sostenible del agua y el saneamiento para todos es_ES
dc.subject.ods 09.- Desarrollar infraestructuras resilientes, promover la industrialización inclusiva y sostenible, y fomentar la innovación es_ES
dc.subject.ods 12.- Garantizar las pautas de consumo y de producción sostenibles es_ES


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