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Carrier-mediated transport of platinum(IV) through a supported liquid membrane impregnating an 8-quinolinol derivative

Authors
Journal
Journal of Membrane Science
0376-7388
Publisher
Elsevier
Publication Date
Volume
105
Issue
3
Identifiers
DOI: 10.1016/0376-7388(95)00069-o
Keywords
  • Supported Liquid Membrane
  • Liquid-Liquid Extraction
  • Carrier-Mediated Transport
  • 8-Quinolinol Derivative
  • Platinum(Iv)

Abstract

Abstract The transport behavior of Pt(IV) has been studied through a supported liquid membrane (SLM) containing a long-chain 8-quinolinol, LIX 26, as a mobile carrier. Platinum(IV) was extracted with LIX 26 from an HCl solution via an anion exchange reaction and stripped from the loaded organic phase by a weakly acidic solution (pH>1). Platinum(IV) was nearly quantitatively transported across an SLM impregnating 15% (v/v) LIX 26 and 10% (v/v) 1-octanol in kerosene from a feed solution of 1–2 M HCl into a weakly acidic product solution. The transport rate of Pt(IV) was related to the distribution ratio on the feed side. Platinum(IV) was efficiently enriched in the product solution with high recovery.

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