Russian Chemical Bulletin

, Volume 42, Issue 9, pp 1471–1476 | Cite as

FT-IR-Spectroscopic investigation of the mechanism of membrane extraction of cobalt(II) from HCl solutions by solutions of tri-n-octylamine inn-decane

  • T. L. Lebedeva
  • L. M. Kardivarenko
  • V. V. Bagreev
  • N. A. Platé
General and Inorganic Chemistry

Abstract

The extraction of cobalt(II) from aqueous HCl by tri-n-octylamine (TOA) inn-decane is investigated by means of FT-IR spectroscopy. The sharp increase in cobalt(II) transport during its membrane extraction from a HCl solution by solutions of TOA in a narrow interval of extradant-carrier concentrations is explained by a change in the transport mechanism which seems to differ from the diffusion and “relay” mechanisms.

Key words

FT-IR spectroscopy membrane extraction Co(II) 

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Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • T. L. Lebedeva
    • 1
  • L. M. Kardivarenko
    • 2
  • V. V. Bagreev
    • 2
  • N. A. Platé
    • 1
  1. 1.A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of SciencesMoscowRussian Federation
  2. 2.V. I. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of SciencesMoscowRussian Federation

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