Novel conventional and chelating anion exchange resins with amino ligands for sorption of silver

The polymeric resins containing diethylenetriamine, tetraethylenepentamine, 2-(diethylamino)ethanol, 1-methylimidazole, and 1,2-dimethylimidazole ligands have been synthesized from vinylbenzyl chloride-divinylbenzene copolymers and used in the removal of Ag(I) from chloride solution. The best Ag(I)...

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Bibliographic Details
Published in:Separation science and technology 2020-08, Vol.55 (12), p.2170-2182
Main Authors: Pilśniak-Rabiega, Magdalena, Wejman, Katarzyna, Wolska, Joanna
Format: Article
Language:English
Subjects:
Ag(I)
Anion exchange
Anion exchanging
Anions
Chelating resins
Chelation
Chloride
Chlorides
Concentrators
Copolymers
Copper
desorption
Divinylbenzene
Ethanol
Imidazole
Leaching
Ligands
Polymeric resins
Polymers
Resins
selectivity
Silver
Sorption
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Summary:The polymeric resins containing diethylenetriamine, tetraethylenepentamine, 2-(diethylamino)ethanol, 1-methylimidazole, and 1,2-dimethylimidazole ligands have been synthesized from vinylbenzyl chloride-divinylbenzene copolymers and used in the removal of Ag(I) from chloride solution. The best Ag(I) sorption was reached in the case of 1-methylimidazole resin. Resins retain their capacity towards Ag(I) in five consecutive sorption/desorption cycles. The resins with imidazole ligands were highly selective for Ag(I) from synthetic chloride solution and they did not sorb chloride complexes of Cu(II). Additionally, the recovery of Ag(I) was tested from real chloride solution coming from leaching of the copper concentrate from Lubin Concentrator (KGHM Polska Miedź S.A.).
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2019.1639741