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Zinc recovery from an extreme copper-free acid mine drainage: studying the prior separation of ferric iron by solvent extraction using AliCy and/or alkalinization

2022Journal article Restricted access
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dc.contributor.authorNobahar, Amir
dc.contributor.authorMelka, Alemu Bejiga
dc.contributor.authorMarín-Beltrán, Isabel
dc.contributor.authorNeves, Luiz
dc.contributor.authorCosta, Maria Clara
dc.contributor.authorDias Carlier, Jorge
dc.date.accessioned2023-01-04T10:46:49Z
dc.date.available2023-01-04T10:46:49Z
dc.date.issued2022
dc.description.abstractZn recovery attempts from a copper-free extreme Acid Mine Drainage with similar to 53 g/L Fe and similar to 2 g/L Zn revealed Fe co-extraction in solvent extraction with 0.9 M D2EHPA or a mixture of 0.72 M D2EHPA and 0.18 M Cyanex 272, and simultaneous precipitation of Fe during zinc sulfide recovery through biogenic sulfide addition. Therefore, alkalinization, solvent extraction with the self-prepared ionic liquid AliCy diluted in kerosene, and combinations of both these methods were studied for the separation of ferric iron (Fe3+) from such water, prior to Zn recovery. The most efficient strategy tested was a solvent extraction cycle with AliCy followed by alkalinization of its aqueous raffinate to pH 3.25 or 3.5. As a result of this approach, similar to 92% of Fe3+ is separated by SX and the remaining is removed by precipitation, with just similar to 12% or similar to 17% Zn losses, respectively. Afterwards, the highest Zn recovery from water resulting from such combination of processes was achieved by precipitation through addition of biogenic sulfide at pH = 3.5. The obtained precipitates are nanoparticles of Wurzite and Sphalerite (ZnS) of sizes between 2 to 22 nm agglomerated into larger structures. This work shows for the first time the potential of AliCy to separate Fe3+ from acidic multimetallic solutions, a known contaminant of several metal recovery processes.pt_PT
dc.description.sponsorshipMETALCHEMBIO
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1007/s40831-022-00588-8pt_PT
dc.identifier.eissn2199-3831
dc.identifier.urihttp://hdl.handle.net/10400.1/18725
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentro de Química Estrutural
dc.relationNot Available
dc.subjectAcid mine drainagept_PT
dc.subjectIonic liquidIron solvent extractionpt_PT
dc.subjectMetal bio-recoverypt_PT
dc.subjectZinc sulfidept_PT
dc.titleZinc recovery from an extreme copper-free acid mine drainage: studying the prior separation of ferric iron by solvent extraction using AliCy and/or alkalinizationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentro de Química Estrutural
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00100%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2017/CEECIND%2F03072%2F2017%2FCP1391%2FCT0005/PT
oaire.citation.endPage1531pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage1509pt_PT
oaire.citation.titleJournal of Sustainable Metallurgypt_PT
oaire.citation.volume8pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC IND 2017
person.familyNameNobahar
person.familyNameCosta
person.familyNameCarlier
person.givenNameAmir
person.givenNameMaria Clara
person.givenNameJorge
person.identifierhttps://scholar.google.com/citations?user=Wgc6MlUAAAAJ&hl=en
person.identifier.ciencia-id3A19-5673-BA9A
person.identifier.ciencia-id7110-A28E-3C8A
person.identifier.ciencia-id691D-A1BB-15CC
person.identifier.orcid0000-0002-7401-9076
person.identifier.orcid0000-0003-1340-5237
person.identifier.orcid0000-0003-0675-2716
person.identifier.ridM-6189-2013
person.identifier.scopus-author-id35354952400
person.identifier.scopus-author-id7102166949
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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