Russian Journal of Applied Chemistry

, Volume 76, Issue 2, pp 211–216 | Cite as

Mutual Influence of Rare-Earth Metals(III) in Their Joint Extraction from Aqueous Solutions with a Toluene Solution of Trialkylbenzylammonium Naphthenate

  • A. K. Pyartman
  • A. A. Kopyrin
  • D. A. Zhiharev
  • V. A. Keskinov


Extraction of nitrates of lanthanides(III) [La(III)-Lu(III) and also yttrium(III)] from their aqueous multicomponent systems with a toluene solution of trialkylbenzylammonium naphthenate was studied at 298 K and pH 3. Physicochemical and mathematical models describing the distribution and mutual influence of lanthanides(III) [Ln(III)] in their joint extraction from multicomponent aqueous solutions as influenced by the total Ln(III) concentration in the aqueous phase and composition of their mixture was developed.


Nitrate Aqueous Solution Mathematical Model Toluene Aqueous Phase 
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Copyright information

© MAIK “Nauka/Interperiodica” 2003

Authors and Affiliations

  • A. K. Pyartman
    • 1
  • A. A. Kopyrin
    • 1
  • D. A. Zhiharev
    • 1
  • V. A. Keskinov
    • 1
  1. 1.St. Petersburg State Technological InstituteSt. PetersburgRussia

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