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Software for computation of aqueous phase species distributions and solvent extraction with liquid cation exchangers

  • Hydrometallurgy
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Abbreviations

[C]:

concentration of metal carboxylate complex, (M(OH) q R n-q ·mHR) x , in the organic phase

K ex :

equilibrium constant for solvent extraction (in terms of analytical concentrations)

K w :

dissociation constant of water

[L]:

concentration of free ligand,L 1−, in the aqueous phase

[L]tot :

total concentration of ligandL in the aqueous phase

[M]:

concentration of Mn+ ions in the aqueous phase

[M]aq :

total concentration of metal M in the aqueous phase

[M]org :

total concentration of metal M in the organic phase

[M]0 :

initial concentration of metal M in aqueous phase

m :

solvation number of the metal extractant complex

p :

degree of polymerization of the free acid extractant

q :

degree of hydrolysis of the extracted cation

[HR]:

concentration of acid extractant, HR, in the organic phase

x :

degree of polymerization of the metal extractant complex

β i :

overall stability constant for formation of specified individual complexes

β OH a,b :

overall formation constant for the complex M a (OH) b

β L c,d,e :

overall formation constant for the complex M c L d (HL) e

β L :

sum of overall formation constants of complexes containingL used to relate the total concentration ofL in the aqueous phase and the concentration of free ligand

References

  1. R. T. McAndrew, S. S. Wang, and W. R. Brown:CIM Bulletin, Jan. 1975, pp. 101–10.

  2. R. M. Smith and A. E. Martell:Critical Stability Constants, Volume 4: Inorganic Complexes, Plenum Press, New York, NY, 1976.

    Google Scholar 

  3. A. Ringbom:Complexation in Analytical Chemistry, Interscience Publishers, 1963.

  4. D. Pouillon: M. S. Thesis, University of California, 1985.

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Author notes

  1. D. Pouillon (Graduate Student)

    Present address: the Department of Materials Science and Mineral Engineering, University of California, Berkeley

Authors and Affiliations

  1. the Belgian Army, Belgium

    D. Pouillon (Graduate Student)

  2. Department of Materials Science and Mineral Engineering, University of California, 94720, Berkeley, CA

    F. M. Doyle (Assistant Professor)

Authors
  1. D. Pouillon
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  2. F. M. Doyle
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Additional information

This research has been supported by the Belgian American Educational Foundation, and by the United States Department of the Interior’s Mineral Institutes program administered by the Bureau of Mines under allotment grant number G1154106.

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Pouillon, D., Doyle, F.M. Software for computation of aqueous phase species distributions and solvent extraction with liquid cation exchangers. Metall Trans B 18, 743–746 (1987). https://doi.org/10.1007/BF02672894

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  • DOI: https://doi.org/10.1007/BF02672894

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