Solubility behavior of rare earths with ammonium carbonate and ammonium carbonate plus ammonium hydroxide: precipitation of their peroxicarbonates

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dc.contributor.authorVASCONCELLOS, MARI E. dept_BR
dc.contributor.authorROCHA, S.M.R.pt_BR
dc.contributor.authorPEDREIRA, W.R.pt_BR
dc.contributor.authorQUEIROZ, CARLOS A. da S.pt_BR
dc.contributor.authorABRAO, ALCIDIOpt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2014-07-15T13:44:04Zpt_BR
dc.date.accessioned2014-07-30T11:48:35Z
dc.date.available2014-07-15T13:44:04Zpt_BR
dc.date.available2014-07-30T11:48:35Z
dc.date.issued2008pt_BR
dc.description.abstractThe purpose of this work is to report the significant behavior of the rare earths when treated with ammonium carbonate and with a binary mixture of ammonium carbonate plus ammonium hydroxide. The carbonates of some rare earths are completely soluble in ammonium carbonate or in ammonium carbonate plus ammonium hydroxide, while others are only partially soluble and finally some are completely insoluble. Addition of hydrogen peroxide to the soluble complexed rare earth carbonates results in the precipitation of a series of a new compounds described as rare earth peroxicarbonates. The rare earths have some different precipitation behavior in the carbonate–peroxide system. Some are completely and immediately precipitated, others are completely precipitated after an aging period, and finally other are not precipitated at all. These different behaviors open a new possibility for the separation chemistry of the rare earths. Sm, Gd, Dy, Y, Yb and Tm are fast and completely soluble in ammonium carbonate. Ho, Eu and Tb are completely soluble in ammonium carbonate but slowly dissolved. La, Ce, Pr and Nd are only partially soluble in ammonium carbonate. While Ce, Pr, Nd, Sm, Eu and Dy are completely and easily soluble in the ammonium carbonate plus ammonium hydroxide mixture, La is only partially soluble and Tb is completely insoluble in the same mixture. Concerning the peroxicarbonates, La, Ce, Pr, Nd, Sm, Eu, Gd, Dy and Ho are quantitatively precipitated. The precipitation of the Er peroxicarbonate is quantitative, but after an aging period of 24 h. Y is not precipitated at all. The process is very easy, simple and economically attractive. Although proved in bench scale, its scale-up is easily feasible.
dc.format.extent426-428pt_BR
dc.identifier.citationVASCONCELLOS, MARI E. de; ROCHA, S.M.R.; PEDREIRA, W.R.; QUEIROZ, CARLOS A. da S.; ABRAO, ALCIDIO. Solubility behavior of rare earths with ammonium carbonate and ammonium carbonate plus ammonium hydroxide: precipitation of their peroxicarbonates. <b>Journal of Alloys and Compounds</b>, v. 451, p. 426-428, 2008. DOI: <a href="https://dx.doi.org/10.1016/j.jallcom.2007.04.163">10.1016/j.jallcom.2007.04.163</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/5091.
dc.identifier.doi10.1016/j.jallcom.2007.04.163
dc.identifier.issn0925-8388pt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/5091pt_BR
dc.identifier.vol451pt_BR
dc.relation.ispartofJournal of Alloys and Compoundspt_BR
dc.rightsopenAccessen
dc.subjectagingpt_BR
dc.subjectammonium carbonatespt_BR
dc.subjectammonium hydroxidespt_BR
dc.subjectbinary mixturespt_BR
dc.subjecthydrogen peroxidept_BR
dc.subjectprecipitationpt_BR
dc.subjectrare earthspt_BR
dc.titleSolubility behavior of rare earths with ammonium carbonate and ammonium carbonate plus ammonium hydroxide: precipitation of their peroxicarbonatespt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorALCIDIO ABRAO
ipen.autorCARLOS ALBERTO DA SILVA QUEIROZ
ipen.autorSORAYA MARIA RIZZO DA ROCHA
ipen.autorMARI ESTELA DE VASCONCELLOS
ipen.codigoautor596
ipen.codigoautor1185
ipen.codigoautor81
ipen.codigoautor497
ipen.contributor.ipenauthorALCIDIO ABRAO
ipen.contributor.ipenauthorCARLOS ALBERTO DA SILVA QUEIROZ
ipen.contributor.ipenauthorSORAYA MARIA RIZZO DA ROCHA
ipen.contributor.ipenauthorMARI ESTELA DE VASCONCELLOS
ipen.date.recebimento09-01pt_BR
ipen.identifier.fi1.510pt_BR
ipen.identifier.ipendoc12977pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi1.500 - 2.999
ipen.type.genreArtigo
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relation.isAuthorOfPublication6102a3fb-2aa8-40d1-ab9a-14642b733e55
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relation.isAuthorOfPublication.latestForDiscovery31dd8a7a-10b1-4b18-a132-0d4776cf0525
sigepi.autor.atividadeVASCONCELLOS, MARI E. DE:497:520:Spt_BR
sigepi.autor.atividadeROCHA, S.M.R.:81:520:Npt_BR
sigepi.autor.atividadeQUEIROZ, CARLOS A. da S.:1185:720:Npt_BR
sigepi.autor.atividadeABRAO, ALCIDIO:596:610:Npt_BR
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