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Progress towards a process for the recycling of nickel metal hydride electric cells using a deep eutectic solvent

Mark Foreman (Institutionen för kemi och kemiteknik, Kärnkemi)
Cogent Chemistry (2331-2009). Vol. 2 (2016), 1,
[Artikel, refereegranskad vetenskaplig]

Solvent extraction experiments relating to the recycling of the transition metals and lanthanides in nickel metal hydride cells are presented. The metal extraction is occurring from a deep eutectic solvent which is formed from chemicals suitable for use in food and related products. While it has been shown that the water content of the DES has a large effect on the extraction of transition metals by a mixture of chloride ionic liquid (Aliquat 336) and an aromatic solvent, the water content has a smaller effect on the solvent extraction of lanthanides with a solution of di(2-ethylhexyl) hydrogen phosphate (DEHPA) in a saturated aliphatic hydrocarbon. This study suggests that an industrial scale solvent extraction process for the recycling of metals from nickel hydride electrical cells will be feasible.

Nyckelord: nickel, cobalt, iron, lanthanides, deep eutectic solvents, ionic liquids, solvent extraction, Aliquat 336, di(2-ethylhexyl) hydrogen phosphate (DEHPA)

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Denna post skapades 2016-03-01. Senast ändrad 2016-04-08.
CPL Pubid: 232595


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Institutioner (Chalmers)

Institutionen för kemi och kemiteknik, Kärnkemi


Oorganisk kemi

Chalmers infrastruktur



Denna publikation är ett resultat av följande projekt:

Cobalt and lanthanide recovery from batteries (COLABATS) (EC/FP7/603482)