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Oxidative leaching process with cupric ion in hydrochloric acid media for recovery of Pd and Rh from spent catalytic converters

2014Journal article Restricted
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dc.contributor.authorNogueira, C. A.
dc.contributor.authorPaiva, A. P.
dc.contributor.authorOliveira, P. C.
dc.contributor.authorCosta, Maria Clara
dc.contributor.authorCosta, Ana M. Rosa da
dc.date.accessioned2016-01-07T16:04:20Z
dc.date.available2016-01-07T16:04:20Z
dc.date.issued2014
dc.description.abstractThe recycling of platinum-group metals from wastes such as autocatalytic converters is getting growing attention due to the scarcity of these precious metals and the market pressure originated by increase of demand in current and emerging applications. Hydrometallurgical treatment of such wastes is an alternative way to the most usual pyrometallurgical processes based on smelter operations. This paper focuses on the development of a leaching process using cupric chloride as oxidising agent, in HCl media, for recovery of palladium and rhodium from a spent catalyst. The chloride media allows the adequate conditions for oxidising and solubilising the metals, as demonstrated by equilibrium calculations based on thermodynamic data. The experimental study of the leaching process revealed that Pd solubilisation is clearly easier than that of Rh. The factors temperature, time, and HCl and Cu(2+) concentrations were significant regarding Pd and Rh leaching, the latter requiring higher factor values to achieve the same results. Leaching yields of 95% Pd and 86% Rh were achieved under optimised conditions (T = 80 °C, t = 4h, [HCl] = 6M, [Cu(2+)] = 0.3M).pt_PT
dc.identifier.citationJ. Hazard. Mater. 278 (2014) 82–90pt_PT
dc.identifier.doi10.1016/j.jhazmat.2014.05.099pt_PT
dc.identifier.issn0304-3894
dc.identifier.otherAUT: AMC01695;
dc.identifier.urihttp://hdl.handle.net/10400.1/7402
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0304389414004543pt_PT
dc.subjectRecyclingpt_PT
dc.subjectPd–Rh catalystpt_PT
dc.subjectHydrometallurgypt_PT
dc.subjectOxidative leachingpt_PT
dc.subjectCupric chlorideapt_PT
dc.titleOxidative leaching process with cupric ion in hydrochloric acid media for recovery of Pd and Rh from spent catalytic converterspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FQUI-QUI%2F109970%2F2009/PT
oaire.citation.endPage90pt_PT
oaire.citation.startPage82pt_PT
oaire.citation.titleJournal of Hazardous Materialspt_PT
oaire.citation.volume278pt_PT
oaire.fundingStream3599-PPCDT
person.familyNameCosta
person.familyNameRosa da Costa
person.givenNameMaria Clara
person.givenNameAna M
person.identifier305029
person.identifier.ciencia-id7110-A28E-3C8A
person.identifier.ciencia-idA418-A85E-5DB1
person.identifier.orcid0000-0003-1340-5237
person.identifier.orcid0000-0003-0225-9537
person.identifier.ridM-6189-2013
person.identifier.ridE-2165-2012
person.identifier.scopus-author-id35354952400
person.identifier.scopus-author-id53986075100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication11c29f10-6e2b-40d8-9c74-2cc45be6d7a7
relation.isAuthorOfPublication0ca8c16f-6881-4662-bafc-cc51c5ce8d88
relation.isAuthorOfPublication.latestForDiscovery0ca8c16f-6881-4662-bafc-cc51c5ce8d88
relation.isProjectOfPublicatione6818a69-8b2b-461c-b1d1-6b70bec8b2d7
relation.isProjectOfPublication.latestForDiscoverye6818a69-8b2b-461c-b1d1-6b70bec8b2d7

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