Ionic liquids in the solvent extraction of platinum-group metals : how far can they go?

Paiva, A. P.; Costa, M. Clara; Nogueira, Carlos

http://hdl.handle.net/10400.9/3259

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Authors

Paiva, A. P.

Costa, M. Clara

Nogueira, Carlos

Abstract(s)

ABSTRACT: Ionic liquids (ILs) are molten salts that are liquid at room temperature. Although their existence has been known from the beginning of the 20th century, only at the end of the 80's - beginning of 90´s their characteristic properties and potential advantages began to be widely explored. Nowadays there is no doubt that ILs have become a major subject of research for modern chemistry, and the industry progressively starts to include ILs in chemical processes. This communication presents and discusses some relevant results found in literature concerning the application of ILs to recover platinum-group metals (PGMs) from complex leaching solutions by solvent extraction (SX). Based on the available data, an evaluation about the forthcoming of ILs to recover PGMs from real leaching solutions of spent catalysts will be assessed.

Keywords

Ionic liquids Solvent extraction Platinum-group metals Chloride solutions Leaching

URI

http://hdl.handle.net/10400.9/3259

Citation

Paiva, A.P... [et.al.] - Ionic liquids in the solvent extraction of platinum-group metals : how far can they go?. In: Book of Proceedings of 5th International Conference WASTES: Solutions, Treatments and Opportunities, Costa da Caparica, Portugal, 4–6 September, 2019, p. 35-37