Comments on the Letter to the Editor written by S. Allahyari et al. concerning the paper “A comparative study of chelating and cationic ion exchange resins for the removal of palladium(II) complexes from acidic chloride media”

Wołowicz, Anna; Hubicki, Zbigniew

doi:10.1016/j.jhazmat.2012.04.055

Cited by 1 publication

(2 citation statements)

References 6 publications

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“…As advised in the specification sheet for Lewatit Monoplus TP-214 by the manufacturer, this resin was not used in the experiments involving S2, since this solution is highly oxidizing and therefore incompatible with TP-214. Also, the issue of the long-term stability of TP-214 in acidic solutions is a matter of discussion in the literature; in our experiments, however, we did not observe a deteriorating effect of hydrochloric acid on this resin. , …”

Section: Methodscontrasting

confidence: 47%

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Phosphorus-Based Polymers for Selective Capture of Platinum Group Metals

Musina

Bocokić²,

Lavric

et al. 2014

Ind. Eng. Chem. Res.

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This work addresses the selective recovery of platinum group metals (PGMs) from aqueous streams, a critical issue within the recycling and metal refining industries aiming to lose zero of the value contained. Herein, selective PGM capture was investigated using three metal-capturing polymeric resins from different manufacturers: a special anion exchanger (Dow), an S-containing chelating resin (Lanxess), and a phosphine oxide containing coordinating resin (Magpie Polymers). The relative affinity of these different materials for the PGMs, as well as copper, was compared under various conditions. It was found that the phosphine oxide based material was the most suitable for the selective capture of PGMs from an oxidizing solution containing high concentrations of copper and counterions. Theoretical calculations using density functional theory (DFT) have shown that the most likely binding of PGMs to this material is a bidentate coordination via the phosphine oxide groups.

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Section: Methodscontrasting

confidence: 47%

“…Also, the issue of the long-term stability of TP-214 in acidic solutions is a matter of discussion in the literature; in our experiments, however, we did not observe a deteriorating effect of hydrochloric acid on this resin. 13,14 2.4. Metal Capture in Continuous Flow.…”

Section: Methodsmentioning

confidence: 99%