Preprint Article Version 1 This version is not peer-reviewed

Extraction of Palladium(II) from Hydrochloric Acid Solutions by Solvent Extraction with Cationic Mixtures

Version 1 : Received: 9 November 2017 / Approved: 9 November 2017 / Online: 9 November 2017 (03:50:44 CET)

A peer-reviewed article of this Preprint also exists.

Truong, H.T.; Lee, M.S.; Son, S.H. Extraction of Palladium(II) from Hydrochloric Acid Solutions by Solvent Extraction with Mixtures Containing Either Cyanex 301 or LIX 63. Metals 2017, 7, 541. Truong, H.T.; Lee, M.S.; Son, S.H. Extraction of Palladium(II) from Hydrochloric Acid Solutions by Solvent Extraction with Mixtures Containing Either Cyanex 301 or LIX 63. Metals 2017, 7, 541.

Journal reference: Metals 2017, 7, 541
DOI: 10.3390/met7120541

Abstract

Cyanex 301 and LIX 63 can seletively extract Pd(II) over Pt(IV) from strong hydrochloric acid solutions. Therefore, solvent extraction experiments have been performed by extractant mixtures containing either Cyanex 301 or LIX 63 and the extraction behavior of Pd(II) was compared. Among the mixture of Cyanex 301, the highest synergistic enhancement coefficient was achieved by mixing Cyanex 301 and TOPO. However, it was very diffiuclt to strip the Pd(II) from the loaded mixture. Among the mixture of LIX 63, the mixture of LIX 63 and Alamine 336/TOPO enhanced the extraction of Pt(II). Although the synergistic coefficient by Cyanex 301 + TOPO was higher than that by LIX 63 + Alamine 336, the Pd(II) in the loaded mixture of LIX 63 and Alamine 336 was easily stripped by thiourea.

Subject Areas

palladium; hydrochloric acid; Cyanex 301; LIX 63; synergism

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