Mostrar el registro sencillo del ítem

dc.contributor.authorCerrillo-González, María del Mar
dc.contributor.authorVillén-Guzmán, María Dolores 
dc.contributor.authorArhoun, Brahim
dc.contributor.authorGómez-Lahoz, César 
dc.contributor.authorVereda-Alonso, Carlos 
dc.date.accessioned2024-05-10T09:32:35Z
dc.date.available2024-05-10T09:32:35Z
dc.date.issued2024-06
dc.identifier.citationMaria del Mar Cerrillo-Gonzalez, Maria Villen-Guzman, Brahim Arhoun, Cesar Gomez-Lahoz, Carlos Vereda-Alonso, Effect of hydroxylammonium chloride as a reductant for hydrochloric acid leaching of valuable metals from discarded lithium-ion batteries, Hydrometallurgy, Volume 226, 2024, 106305, ISSN 0304-386X, https://doi.org/10.1016/j.hydromet.2024.106305.es_ES
dc.identifier.urihttps://hdl.handle.net/10630/31247
dc.description.abstractThe use of hydroxylammonium chloride as a reducing agent is proposed to enhance the acid leaching of cathode material from spent lithium-ion batteries. The current study was conducted using real waste from scooter bat- teries. The main metals found in this cathode material are Mn (43.6%), Li (4.2%), Ni (8.3%) and Co (2.6%), expressed as % w/w. The effect of the initial concentrations of the extracting agent (HCl) and the reducing agent (NH3OHCl) on the extraction yields of the target metals is investigated. The presence of NH3OHCl in HCl so- lutions exerts a highly effective influence during the initial 15 min of the leaching process, with a complete solubilization of Mn within that timeframe, in contrast to the 20% achieved in its absence. During that period, over 70% of Li is solubilized, while Ni and Co reach maximum solubilities of 7% and 5%, respectively. Extending the contact time to 24 h between the extracting solution and LIB waste enables nearly complete extraction of Ni and exceeds 60% for Co. An analysis of variance was used to identify significant factors to be included in multivariable regressions to predict extraction yields. These regressions are used to carry out a preliminary economic analysis of the leaching process based on gross profit. The optimum outcome is achieved when the extraction is conducted through two consecutive leaching processes. In the first process, 100% Mn and 75% of Li are recovered, while the second process recovers the remaining Li, 96% of Ni, and 60% of cobalt. Additionally, the stoichiometry of the reduction of manganese(IV) by NH3OHCl is studied through the correlation between the gas volume released during the leaching processes and the Mn solubilization reached. This reduction proceeds through two parallel reactions, resulting in the production of N2O and N2. The first of these reactions pre- dominates, exhibiting an estimated selectivity of 87%.es_ES
dc.description.sponsorshipAuthors acknowledge the financial support provided by the Euro- pean Union’s Horizon 2020 research and innovation programme through the Marie Skłodowska-Curie grant agreement No. 778045 and by the Spanish Ministry of Science and Innovation and the University of Málaga through the Research Project PID2021-126794OB-100. Authors acknowledge the funding from the University of Malaga (B1-2021_35). Cerrillo-Gonzalez also acknowledges the postdoctoral grant (A.3.1) ob- tained from the University of Malaga. We also acknowledge all the collaboration from LONDON WEEE, S.A for providing the LIBs residues. Funding for open access charge: Universidad de Málaga/CBUAes_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectBaterías de acumuladoreses_ES
dc.subjectPilas de litioes_ES
dc.subject.otherLithium-ion batterieses_ES
dc.subject.otherRecyclinges_ES
dc.subject.otherHydrometallurgyes_ES
dc.subject.otherReductive leachinges_ES
dc.titleEffect of hydroxylammonium chloride as a reductant for hydrochloric acid leaching of valuable metals from discarded lithium-ion batterieses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroFacultad de Cienciases_ES
dc.identifier.doi10.1016/j.hydromet.2024.106305
dc.rights.ccAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


Ficheros en el ítem

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem

Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Excepto si se señala otra cosa, la licencia del ítem se describe como Attribution-NonCommercial-NoDerivatives 4.0 Internacional