Production of uranium tetrafluoride from the effluent generated in the reconversion via ammonium uranyl carbonate

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dc.contributor.authorSILVA NETO, JOAO B.
dc.contributor.authorCARVALHO, ELITA F.U. de
dc.contributor.authorGARCIA, RAFAEL H.L.
dc.contributor.authorSALIBA-SILVA, ADONIS M.
dc.contributor.authorRIELLA, HUMBERTO G.
dc.contributor.authorDURAZZO, MICHELANGELO
dc.coverageInternacionalpt_BR
dc.date.accessioned2018-02-21T11:40:00Z
dc.date.available2018-02-21T11:40:00Z
dc.date.issued2017pt_BR
dc.description.abstractUranium tetrafluoride (UF4) is the most used nuclear material for producing metallic uranium by reduction with Ca or Mg. Metallic uranium is a raw material for the manufacture of uranium silicide, U3Si2, which is the most suitable uranium compound for use as nuclear fuel for research reactors. By contrast, ammonium uranyl carbonate is a traditional uranium compound used for manufacturing uranium dioxide UO2 fuel for nuclear power reactors or U3O8-Al dispersion fuel for nuclear research reactors. This work describes a procedure for recovering uranium and ammonium fluoride (NH4F) from a liquid residue generated during the production routine of ammonium uranyl carbonate, ending with UF4 as a final product. The residue, consisting of a solution containing high concentrations of ammonium (NH4 þ), fluoride (F ), and carbonate (CO3 2 ), has significant concentrations of uranium as UO2 2þ. From this residue, the proposed procedure consists of precipitating ammonium peroxide fluorouranate (APOFU) and NH4F, while recovering the major part of uranium. Further, the remaining solution is concentrated by heating, and ammonium bifluoride (NH4HF2) is precipitated. As a final step, NH4HF2 is added to UO2, inducing fluoridation and decomposition, resulting in UF4 with adequate properties for metallic uranium manufacture.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipIDCNPq: 304034/2015-0; 310274/2012-5; 470363/2012-6pt_BR
dc.format.extent1711-1716pt_BR
dc.identifier.citationSILVA NETO, JOAO B.; CARVALHO, ELITA F.U. de; GARCIA, RAFAEL H.L.; SALIBA-SILVA, ADONIS M.; RIELLA, HUMBERTO G.; DURAZZO, MICHELANGELO. Production of uranium tetrafluoride from the effluent generated in the reconversion via ammonium uranyl carbonate. <b>Nuclear Engineering and Technology</b>, v. 49, n. 8, p. 1711-1716, 2017. DOI: <a href="https://dx.doi.org/10.1016/j.net.2017.07.019">10.1016/j.net.2017.07.019</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/28521.
dc.identifier.doi10.1016/j.net.2017.07.019pt_BR
dc.identifier.fasciculo8pt_BR
dc.identifier.issn1738-5733pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2147-8295
dc.identifier.orcidhttps://orcid.org/0000-0003-0435-6082
dc.identifier.orcidhttps://orcid.org/0000-0002-3602-6857
dc.identifier.orcidhttps://orcid.org/0000-0001-8542-3827
dc.identifier.percentilfi89.39en
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28521
dc.identifier.vol49pt_BR
dc.relation.ispartofNuclear Engineering and Technologypt_BR
dc.rightsopenAccesspt_BR
dc.subjectammonia
dc.subjectheating
dc.subjectnuclear fuels
dc.subjectpower reactors
dc.subjectproduction
dc.subjecturanium
dc.subjecturanium dioxide
dc.subjecturanyl carbonates
dc.titleProduction of uranium tetrafluoride from the effluent generated in the reconversion via ammonium uranyl carbonatept_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorMICHELANGELO DURAZZO
ipen.autorHUMBERTO GRACHER RIELLA
ipen.autorADONIS MARCELO SALIBA SILVA
ipen.autorRAFAEL HENRIQUE LAZZARI GARCIA
ipen.autorELITA FONTENELE URANO DE CARVALHO
ipen.autorJOAO BATISTA DA SILVA NETO
ipen.codigoautor90
ipen.codigoautor2870
ipen.codigoautor961
ipen.codigoautor3498
ipen.codigoautor895
ipen.codigoautor615
ipen.contributor.ipenauthorMICHELANGELO DURAZZO
ipen.contributor.ipenauthorHUMBERTO GRACHER RIELLA
ipen.contributor.ipenauthorADONIS MARCELO SALIBA SILVA
ipen.contributor.ipenauthorRAFAEL HENRIQUE LAZZARI GARCIA
ipen.contributor.ipenauthorELITA FONTENELE URANO DE CARVALHO
ipen.contributor.ipenauthorJOAO BATISTA DA SILVA NETO
ipen.date.recebimento18-02pt_BR
ipen.identifier.fi1.655pt_BR
ipen.identifier.ipendoc24357pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.identifier.ods6
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi75.00 - 100.00
ipen.type.genreArtigo
relation.isAuthorOfPublication6596a057-886c-4d04-b5eb-ac1a38eb82a9
relation.isAuthorOfPublication12380ddd-f2bc-4fe9-95dd-7e37175bee46
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relation.isAuthorOfPublicationc08bebd8-3125-44ee-9666-f921847e3f01
relation.isAuthorOfPublication.latestForDiscoveryc08bebd8-3125-44ee-9666-f921847e3f01
sigepi.autor.atividadeSILVA NETO, JOAO B.:615:410:Spt_BR
sigepi.autor.atividadeCARVALHO, ELITA F.U. DE:895:410:Npt_BR
sigepi.autor.atividadeGARCIA, RAFAEL H.L.:3498:730:Npt_BR
sigepi.autor.atividadeSALIBA-SILVA, ADONIS M.:961:410:Npt_BR
sigepi.autor.atividadeRIELLA, HUMBERTO G.:2870:410:Npt_BR
sigepi.autor.atividadeDURAZZO, MICHELANGELO:90:410:Npt_BR
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