Solvent Extraction of Metal Chelates. I. Application of a Titration Procedure to the Study of the Extraction of Metal Chelates. - Concepedia

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Solvent Extraction of Metal Chelates. I. Application of a Titration Procedure to the Study of the Extraction of Metal Chelates.

DOI Full Paper Access

57

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0

References

1959

Year

Bror Skytte Jensen, F. Winther, Sigvard Eriksson, C.‐G. Hedén, B. Malmgren, H. Palmstierna

Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry

Solvent ExtractionEngineeringMetal IonChemistryMineral ProcessingChemical EngineeringEnvironmental ChemistryTitration ProcedureAnalytical ChemistryAdvanced SeparationChromatographyInorganic ChemistryChemical MeasurementMetal ChelatesTwo-phase Titration ProcedureIon ExchangeChemisorptionExtractive MetallurgyPhase EquilibriumRadioanalytical ChemistryChemical KineticsMetal Chelate Equilibria

Abstract

A two-phase titration procedure for the study of metal chelate equilibria is presented. Equations expressing the relationship between the apparent mean complexity constant in the two-phase system, the mean complexity constant in a water phase, and the distribution coefficients of the uncharged species are derived. The pH-value of 10% extraction of a metal ion is deterinined with good approxiination by this method. The error introduced by the simplified theoretical treatment is discussed and the predictions are confirmed by independent distribution experiments, employing lanthanum-140 as tracer. (auth)