Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/1547
Título: Battery recycling by hydrometallurgy : evaluation of simultaneous treatment of several cell systems
Autor: Nogueira, C. A.
Margarido, F.
Palavras-chave: Battery recycling
Solvent extraction
Data: 11-Mar-2012
Citação: Nogueira, C. A.; Margarido, F. Battery recycling by hydrometallurgy : evaluation of simultaneous treatment of several cell systems. In: Energy Technology 2012: Carbon Dioxide Management and Other Technologies, TMS 2012 Annual Meeting & Exhibition, Orlando, Florida, USA, 11-15 March, 2012, D. Salazar-Villalpando, N.R. Neelameggham, D.P. Guillen, S. Pati, G.K. Krumdick (Eds.), Wiley, New Jersey, USA, and TMS, Warrandale, USA, p. 227-234
Resumo: A research work has being carried out aiming at evaluating the possibility of treating simultaneously several electrochemical systems of spent batteries using the same process, in order to overcome the high costs and difficulties of selective collection and sorting. Zn-MnO2 systems, representing more than 75% of portable battery market, shall be treated in dedicated processes. The treatment assessment using a single hydrometallurgical process of the other major systems (NiCd, NiMH and Li-ion), having Ni and Co as main metals, was the aim of the research work here reported. Sulfuric acid leaching was demonstrated to be adequate for dissolving more than 90% of the metals of interest contained in batteries. The subsequent separation of metals by solvent extraction, using organophosphorous extractants like DEHPA and Cyanex 272, allowed the production of pure solutions of rare earths, cadmium/manganese, cobalt, nickel and lithium, enabling their further recovering
URI: http://hdl.handle.net/10400.9/1547
Aparece nas colecções:UPCS - Comunicações em actas de encontros científicos internacionais

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