Obtaining pure praseodymium acetate to use in researches and development

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dc.contributor.authorQUEIROZ, CARLOS A. da S.pt_BR
dc.contributor.authorROCHA, SORAYA M.R. dapt_BR
dc.contributor.authorPEDREIRA, WALTER R.pt_BR
dc.contributor.authorSENEDA, JOSE A.pt_BR
dc.contributor.authorLOBO, RAQUEL M.pt_BR
dc.contributor.authorS. FILHO, WALTERpt_BR
dc.coverageNacionalpt_BR
dc.creator.eventoENCONTRO DA SBPMAT - SOCIEDADE BRASILEIRA DE PESQUISA EM MATERIAIS, 9.pt_BR
dc.date.accessioned2014-11-19T11:35:12Zpt_BR
dc.date.accessioned2014-11-19T14:11:19Zpt_BR
dc.date.accessioned2015-04-01T14:28:45Z
dc.date.available2014-11-19T11:35:12Zpt_BR
dc.date.available2014-11-19T14:11:19Zpt_BR
dc.date.available2015-04-01T14:28:45Z
dc.date.evento24-28 de outubro, 2010pt_BR
dc.description.abstractThis paper presents a simple and economical procedure to obtain high purity praseodymium acetate. The raw material in the form of mixed rare earths carbonate comes from a industrial separation of rare earths, thorium and uranium in the brasilian monazite. It is used the tecnique of strong cation exchange resin, proper to water treatment, to the praseodymium's fractionation and it is achieved a purity of 99.9% in Pr6O11 and yield greater than or equal 60%, with the elution of rare earths by EDTA solution in pH controlled. The complex of EDTA-praseodymium is transformed in praseodymium oxide, subsequently the oxide is dissolved in acetic acid to obtain the praseodymium acetate. The molecular absorption spectrophotometry tecnique is used to monitoring the praseodymium content during the process and mass spectrometry to certification the purity of the praseodymium acetate. The typical praseodymium acetate obtained presents the followings contaminants in micrograms per gram: Sc(18.20±0.22); Y (20.20 ± 0.20); La (6.75 ± 0.81); Ce (26.10 ± 0.70); Nd (3.31 ± 0.63); Sm (18.30 ± 0.80); Eu (17.00 ± 0.90); Gd (19.40 ± 0.40); Tb (16.30 ± 0.50); Dy (16.90 ± 0.50), Ho(17.90 ± 0.10); Er (18.40 ± 0.70); Tm (16.90 ± 0.10); Yb (17.60 ± 0.60); Lu (17.70 ± 0.50). The high purity praseodymium acetate comes being applied, replacing the imported product, in research and development area on rare earth catalysts.
dc.identifier.citationQUEIROZ, CARLOS A. da S.; ROCHA, SORAYA M.R. da; PEDREIRA, WALTER R.; SENEDA, JOSE A.; LOBO, RAQUEL M.; FILHO, WALTER S. Obtaining pure praseodymium acetate to use in researches and development. In: ENCONTRO DA SBPMAT - SOCIEDADE BRASILEIRA DE PESQUISA EM MATERIAIS, 9., 24-28 de outubro, 2010, Ouro Preto, MG. <b>Resumos...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/21261.
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/21261pt_BR
dc.local.eventoOuro Preto, MGpt_BR
dc.rightsopenAccesspt_BR
dc.subjectacetatespt_BR
dc.subjectpraseodymiumpt_BR
dc.subjection exchangept_BR
dc.subjectmoleculespt_BR
dc.subjectabsorption spectrapt_BR
dc.subjectspectrophotometerspt_BR
dc.titleObtaining pure praseodymium acetate to use in researches and developmentpt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorJOSE ANTONIO SENEDA
ipen.autorRAQUEL DE MORAES LOBO
ipen.autorSORAYA MARIA RIZZO DA ROCHA
ipen.autorCARLOS ALBERTO DA SILVA QUEIROZ
ipen.codigoautor64
ipen.codigoautor466
ipen.codigoautor81
ipen.codigoautor1185
ipen.contributor.ipenauthorJOSE ANTONIO SENEDA
ipen.contributor.ipenauthorRAQUEL DE MORAES LOBO
ipen.contributor.ipenauthorSORAYA MARIA RIZZO DA ROCHA
ipen.contributor.ipenauthorCARLOS ALBERTO DA SILVA QUEIROZ
ipen.date.recebimento11-01pt_BR
ipen.event.datapadronizada2010pt_BR
ipen.identifier.ipendoc16204pt_BR
ipen.notas.internasResumospt_BR
ipen.type.genreResumo
relation.isAuthorOfPublication57b3c8a0-54fe-463f-b6d6-13eed673310d
relation.isAuthorOfPublication069d6fa7-19a7-4434-ba9c-8f0f413c7568
relation.isAuthorOfPublicationcf7c2ce0-9261-4052-92b9-02c031e04bc8
relation.isAuthorOfPublication6102a3fb-2aa8-40d1-ab9a-14642b733e55
relation.isAuthorOfPublication.latestForDiscovery6102a3fb-2aa8-40d1-ab9a-14642b733e55
sigepi.autor.atividadeQUEIROZ, CARLOS A. da S.:1185:720:Spt_BR
sigepi.autor.atividadeROCHA, SORAYA M.R. DA:81:520:Npt_BR
sigepi.autor.atividadeSENEDA, JOSE A.:64:520:Npt_BR
sigepi.autor.atividadeLOBO, RAQUEL M.:466:741:Npt_BR
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