2018-05-232018-05-232015-09SILVA, Juvan Pereira da; SOUZA, Aparecido Ribeiro de. Recuperação de Pd (II) de catalisadores automotivos exauridos sobre a resina de troca iônica 2-vinilpiridina - divinilbenzeno. Revista de Química Industrial, Rio de Janeiro, v. 748, p. 64-70, jul./set. 2015.2358-1697http://repositorio.bc.ufg.br/handle/ri/15074This work presents a study about leaching and extraction of Pd and Pt from exhausted automotive catalysts (EAC). The catalyst was characterized by X-ray diffraction (XRD) and X-ray fluorescence (XRF) and it was identified as cordierite. The leaching of the supported noble metal catalysts was evaluated in aqua regia solution (3:1 v/v, HCl to HNO ) and sulfonitric mixture (1:1 v/v, H SO to 3 2 4 HNO ) at different time. The separation of the components of a mixture leached was carried through 3 with an ion exchange resin to 2-vinylpyridine-divinylbenzene (DVB-2- VPY) and metal eluted from the resin were analyzed by atomic absorption spectrometry (AAS). The exchange capacity of the resin was determined for [PdCl ]2- and [PtCl ]2- ions 1.74 mmol/g, and the highest extraction 4 6 efficiency achieved was 83.1% for palladium.porAcesso AbertoCatalisador automotivoPaládioTroca iônicaMetais do grupo da platinaAutomotive catalytic converterPalladiumIon exchangePlatinum group metalsArtigo