Battery recycling by hydrometallurgy : evaluation of simultaneous treatment of several cell systems

Nogueira, Carlos; Margarido, F.

http://hdl.handle.net/10400.9/1547

Use this identifier to reference this record.

Name:	Description:	Size:	Format:
EnergyTechn2012(TMS).pdf		219.39 KB	Adobe PDF	Download

Send Feedback

Authors

Nogueira, Carlos

Margarido, F.

Abstract(s)

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

Keywords

Battery recycling Hydrometallurgy Leaching Solvent extraction

URI

http://hdl.handle.net/10400.9/1547

Citation

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