The aim of this paper is to characterize spent zinc-carbon and alkaline batteries. Characterization is essential to any process devoted to recovering the valuable materials contained in the batteries. In particular, the status of zinc and manganese has been established to permit treating only the zinc and manganese-bearing components in a recovery process, thus using smaller equipments and reducing both the material to treat and the energy consumption. At present, in fact, industrial processes treat the spent batteries as a bulk, only performing a preliminary separation with physical methods followed by a pyro- or hydrometallurgical process to recover zinc and manganese. Characterization has been carried out by chemical analysis, TGA/DTA analysis, XRPD and SEM analysis after having dismantled the batteries into the single components. Zinc and manganese are well separated in alkaline batteries while in zinc-carbon batteries the two metals are mixed, thus rendering difficult a preliminary separation by picking up the components containing the two metals separately. (C) 2011 Elsevier B.V. All rights reserved.

Characterization of spent zinc-carbon and alkaline batteries by SEM-EDS, TGA/DTA and XRPD analysis / G., Belardi; Ballirano, Paolo; Ferrini, Mauro; Lavecchia, Roberto; Medici, Franco; Piga, Luigi; Scoppettuolo, Antonio. - In: THERMOCHIMICA ACTA. - ISSN 0040-6031. - STAMPA. - 526:1-2(2011), pp. 169-177. [10.1016/j.tca.2011.09.012]

Characterization of spent zinc-carbon and alkaline batteries by SEM-EDS, TGA/DTA and XRPD analysis

BALLIRANO, Paolo;FERRINI, Mauro;LAVECCHIA, Roberto;MEDICI, Franco;PIGA, LUIGI;SCOPPETTUOLO, Antonio
2011

Abstract

The aim of this paper is to characterize spent zinc-carbon and alkaline batteries. Characterization is essential to any process devoted to recovering the valuable materials contained in the batteries. In particular, the status of zinc and manganese has been established to permit treating only the zinc and manganese-bearing components in a recovery process, thus using smaller equipments and reducing both the material to treat and the energy consumption. At present, in fact, industrial processes treat the spent batteries as a bulk, only performing a preliminary separation with physical methods followed by a pyro- or hydrometallurgical process to recover zinc and manganese. Characterization has been carried out by chemical analysis, TGA/DTA analysis, XRPD and SEM analysis after having dismantled the batteries into the single components. Zinc and manganese are well separated in alkaline batteries while in zinc-carbon batteries the two metals are mixed, thus rendering difficult a preliminary separation by picking up the components containing the two metals separately. (C) 2011 Elsevier B.V. All rights reserved.
2011
zinc; chemical analysis; metal recovery; recycling; battery; manganese; recovery; battery recycling
01 Pubblicazione su rivista::01a Articolo in rivista
Characterization of spent zinc-carbon and alkaline batteries by SEM-EDS, TGA/DTA and XRPD analysis / G., Belardi; Ballirano, Paolo; Ferrini, Mauro; Lavecchia, Roberto; Medici, Franco; Piga, Luigi; Scoppettuolo, Antonio. - In: THERMOCHIMICA ACTA. - ISSN 0040-6031. - STAMPA. - 526:1-2(2011), pp. 169-177. [10.1016/j.tca.2011.09.012]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/521617
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