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Features of Sorption Preconcentration of Noble Metal Ions with Sulfoethylated Amino Polymers

Authors
  • Alifkhanova, L. M. k.1
  • Lopunova, K. Ya.1
  • Marchuk, A. A.1
  • Petrova, Yu. S.1
  • Pestov, A. V.1, 2
  • Neudachina, L. K.1
  • 1 Ural Federal University, Yekaterinburg, 620002, Russia , Yekaterinburg (Russia)
  • 2 Postovskii Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620041, Russia , Yekaterinburg (Russia)
Type
Published Article
Journal
Russian Journal of Inorganic Chemistry
Publisher
Pleiades Publishing
Publication Date
Jun 29, 2021
Volume
66
Issue
6
Pages
909–915
Identifiers
DOI: 10.1134/S0036023621060024
Source
Springer Nature
Keywords
Disciplines
  • Physical Chemistry of Solutions
License
Yellow

Abstract

AbstractDependencies for the sorption of palladium(II), gold(III), and platinum(IV) chloro complexes from individual and binary solutions with sorbents based on sulfoethylated polyallylamine and poly(aminostyrene) have been obtained. It has been found that predominant sorption mechanism is complexation with functional groups of the sorbents for gold(III) and palladium(II) and ion exchange for platinum(IV). It has been shown that increase in the sulfoethylation degree of aminopolymer matrix leads to decrease of platinum(IV) sorption and therefore, to increase in palladium(II) sorption selectivity relative to this ion. This effect is the largest for the sorbents based on polyallylamine. The conditions of quantitative desorption of the studied metals from sorbent surface have been determined. The sorption of gold(III) by the sorbent based on polyallylamine has been shown to be complicated by gold(III) reduction in sorbent phase.

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