Uranyi ion transport through tri-n-octylamine-xylene based supported liquid membranes

  • M. A. Chaudry
  • D. Mohammad


Tri-n-octylamine (TOA) dissolved in xylene has been used as carrier, constituting liquid membrane supported in Celgard 2400 polypropylene microporous film for the transport of uranyl ions against their concentration gradient from aqueous acid solutions to an alkaline aqueous phase. Effect of sttrring rate, nitric acid concentration and TOA concentration in the organic membrane phase, on the flux of uranyl ions through the membrane has been studied. Viscosity and density data have been obtained to estimate diffusion coefficients and hence the permeability coefficients to compare the same with experimental values, using distribution coefficient data, measured from solvent extraction experiments and available in the literature. Analysis of the flux data has been performed to study the stoichiometry of the chemical reaction involved in complex formation reaction. The results have been compared with simple liquid-liquid extraction data.


Permeability Coefficient Liquid Membrane Aqueous Acid Solution Membrane Phase Nitric Acid Concentration 
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Copyright information

© Akadémiai Kiadó 1987

Authors and Affiliations

  • M. A. Chaudry
    • 1
  • D. Mohammad
    • 1
  1. 1.Pakistan Institute of Nuclear Science and TechnologyIslamabadPakistan

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