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Guilherme Dias Rodrigueshttp://lattes.cnpq.br/8226609855788662Ana Paula de Carvalho TeixeiraLeandro Rodrigues de Lemoshttp://lattes.cnpq.br/4421682781089824Daniela da Silveira Leite2022-12-22T13:24:09Z2022-12-22T13:24:09Z2015-07-29http://hdl.handle.net/1843/48346Neste trabalho foi desenvolvido um novo método hidrometalúrgico ambientalmente seguro para a separação seletiva de cobre e cobalto provenientes de resíduos de bateria íon-lítio, empregando Sistemas Aquosos Bifásicos (SAB) como técnica de extração. O comportamento de extração dos íons metálicos Cu(II) e Co(II) foi avaliado para a otimização do método, verificando a influência dos seguintes parâmetros experimentais sobre a extração dos analitos: natureza e concentração dos extratantes 1-(2-piridil-azo)- 2-naftol (PAN), 1-nitroso-2-naftol (1N2N) e ácido 2,4,4-trimetil-pentil fosfínico (Cyanex 272); pH (1,00, 6,00 e 11,00); eletrólito formador do sistema (Na2SO4 ou Na3C6H5O7) comprimento da linha de amarração (CLA) do SAB e razão entre as massas das fases. A eficiência de recuperação seletiva dos metais foi avaliada através da análise da porcentagem de extração (%E) e fator de separação (S) entre cobre e cobalto. As melhores condições para extração seletiva foram obtidas para o SAB L64 + Na2SO4, pH = 6,00, CLA = 50,29 % (m/m), mFS/mFI = 1, o qual apresentou SCu,Co = 321,6, empregando o extratante PAN. Em seguida, o método foi aplicado à uma amostra real de bateria íon-lítio, previamente lixiviada com água-régia, e após 5 etapas de extrações sucessivas foi possível obter um valor de SCu,Co = 5,4 x 105 . Além disso, foi realizado um ensaio de reextração ácida (stripping) no qual em apenas uma etapa de reextração 70,5% de Cu(II) foi redisponibilizado sob a forma livre para uma possível etapa de eletrorrecuperação.A new green hydrometallurgical method was developed for the selective extraction of copper and cobalt from spent ion-lithium battery, using Aqueous Two-Phase System (ATPS) extraction technique. The extraction behavior of Cu(II) e Co(II) was evaluated for the optimization of the method, verifying the influence of the following parameters on the metals extraction: type and concentration of the extractants 1-(2-piridil-azo)-2- naphtol (PAN), 1-nitroso-2-naphtol (1N2N) and bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex 272); pH (1.00, 6.00 and 11.0); ATPS-forming electrolyte (Na2SO4 or Na3C6H5O7); tie-line length (TLL) of the system and mass ratio between top and bottom phases. The recovery efficiency was evaluated through analyzing the extraction percentage (%E) and separation factor (S) between copper and cobalt. The best conditions for selective extraction were achieved for the L64 + Na2SO4 ATPS, pH = 6.00, TLL = 50.29 % (w/w), mFS/mFI = 1, which presented SCu,Co = 321.6, using PAN as extractant agent. In the following section, the method was applied to a real ion-lithium battery sample, previously leaching with HCl and HNO3 (3:1). After 5 steps of successive extractions it was possible to obtain SCu,Co = 5.4 x 105 . Moreover, a stripping assay was carried out and after one single step, 70.5% of copper was available to a possible electrowinning step.CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas GeraisporUniversidade Federal de Minas GeraisPrograma de Pós-Graduação em QuímicaUFMGBrasilICX - DEPARTAMENTO DE QUÍMICAhttp://creativecommons.org/licenses/by-nc-nd/3.0/pt/info:eu-repo/semantics/openAccessQuímica analíticaCobreCobaltoPilhas e bateriasHidrometalurgiaCobreCobaltoBaterias íon-lítioLixo eletrônicoSistemas aquosos bifásicosCopperCobaltIon-lithium batteriesElectronic wasteAqueous two-phase systemsSeparação hidrometalúrgica de cobre e cobalto provenientes de baterias íon-lítio empregando sistemas aquosos bifásicosinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGORIGINALdissertação_corrigida.pdfdissertação_corrigida.pdfapplication/pdf1581183https://repositorio.ufmg.br/bitstream/1843/48346/1/disserta%c3%a7%c3%a3o_corrigida.pdf52e54e926b2ff3da01e90e6e68e08ec9MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufmg.br/bitstream/1843/48346/2/license_rdfcfd6801dba008cb6adbd9838b81582abMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82118https://repositorio.ufmg.br/bitstream/1843/48346/3/license.txtcda590c95a0b51b4d15f60c9642ca272MD531843/483462022-12-22 10:24:09.639oai:repositorio.ufmg.br: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ório InstitucionalPUBhttps://repositorio.ufmg.br/oaiopendoar:2022-12-22T13:24:09Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false
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