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Rate Processes in Solvent Extraction Systems

  • Carl Hanson
Part of the NATO Conference Series book series (NATOCS, volume 10)

Abstract

Most processes for the solvent extraction of metals involve chemical complex formation between a metal containing ion and an extractant. This is essential both for transfer of the metal to the organic phase and also, in some cases, for the specificity of the extraction. Since a chemical reaction is involved, the rate of transfer between the two phases will depend upon both the rates of the actual transport processes in the two phases and the kinetics of the chemical reaction(s). A knowledge of the overall rate of transfer is obviously important in plant design. However, interest in a full understanding of the rate determining processes has only developed this last decade. Prior to that, most data for design purposes were generated by relatively simple laboratory or pilot plant experiments, usually interpreted in terms of mass transfer alone as with the simpler and already established industrial extraction processes, thus ignoring any possible contribution from a chemical kinetic resistance.

Keywords

Solvent Extraction Diffusional Resistance Solvent Extraction System Actual Transport Process United Kingdom Introduction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1984

Authors and Affiliations

  • Carl Hanson
    • 1
  1. 1.Schools of Chemical EngineeringUniversity of BradfordBradford, West YorkshireUK

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