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Interfacial activity of 1-(2′-hydroxy-5′-methylphenyl)-dodecane-1-one oxime and the interfacial mechanism of copper extraction

  • J. Szymanowski
  • K. Prochaska
Interfaces
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 76)

Abstract

The interfacial tension isotherms for pure 1-(2′-hydroxy-5′-methylphenyl)-dodecane-1-one oxime at toluene/water and octane/water interfaces were determined and interpreted. The surface excess was calculated according to the Gibbs, Szyskowski and Temkin isotherms and the third order polynominal and used to predict reaction orders against hydroxyoxime for different mechanism versions of copper extraction from acidic sulphate solutions. The obtained results support the interfacial mechanism of copper extraction with the formation of stable 2:1 complex from intermedate 1:1 compelex and the hydroxyoxime molecule present in the aqueous layer near the interface as the slowest step.

Key words

Hydroxyoxime copper extraction 

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References

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Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1988

Authors and Affiliations

  • J. Szymanowski
    • 1
  • K. Prochaska
    • 1
  1. 1.Institute of Chemical Technology and EngineeringTechnical University of PoznańPoznańPoland

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