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Vol 169
Pages:
196-203
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RUS
Article

Extraction of cerium(III) and yttrium(III) by carboxylic acids from nitrate media

Authors:
D. E. Chirkst1
T. E. Litvinova2
V. S. Starshinova3
G. S. Roshchin4
D. S. Lutskii5
About authors
  • 1 — G.V. Plekhanov Saint Petersburg Mining Institute
  • 2 — G.V. Plekhanov Saint Petersburg Mining Institute
  • 3 — G.V. Plekhanov Saint Petersburg Mining Institute
  • 4 — G.V. Plekhanov Saint Petersburg Mining Institute
  • 5 — G.V. Plekhanov Saint Petersburg Mining Institute
Date submitted:
2005-09-10
Date accepted:
2005-10-23
Date published:
2006-12-08

Abstract

Experimental data on the solvate extraction of cerium(III) and yttrium(III) by solutions of oleic and naphthenic acids in o-dimethylbenzene were obtained. After mathematical analysis of the dependences of the distribution coefficient on pH and the composition of the organic and aqueous phases, the structure and composition of the solvate complexes were determined, as well as the values of Gibbs free energies and equilibrium constants of the reaction.

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