Progress towards a process for the recycling of nickel metal hydride electric cells using a deep eutectic solvent.
- Resource Type
- Article
- Authors
- Foreman, Mark R.StJ.; Slawin, Alexandra Martha Zoya
- Source
- Cogent Chemistry. Dec2016, Vol. 2 Issue 1, pN.PAG-N.PAG. 1p.
- Subject
- *SOLVENT extraction
*RARE earth metals
*TRANSITION metals & the environment
*METAL recycling
*ALIPHATIC hydrocarbons
- Language
- ISSN
- 2331-2009
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. [ABSTRACT FROM PUBLISHER]