Kinetics of coupled transport of Cu(II) ions through liquid membranes composed of technical solvents and paraffin mixtures

Steady-state and non-steady-state kinetics of coupled transport of copper(II) through liquid membranes made up to technical solvents (escaid 110, kerosene, cosmetic kerosene) and their mixtures with paraffins ( n-octane, n-dodecane) have been examined. The influence of the membrane composition on th...

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Bibliographic Details
Published in:Journal of membrane science 1994-07, Vol.92 (3), p.267-273
Main Author: Szpakowska, Maria
Format: Article
Language:English
Subjects:
Coupled copper transport
Multicomponent liquid membranes
Technical solvents
Transport kinetics
Waste waters
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Summary:Steady-state and non-steady-state kinetics of coupled transport of copper(II) through liquid membranes made up to technical solvents (escaid 110, kerosene, cosmetic kerosene) and their mixtures with paraffins ( n-octane, n-dodecane) have been examined. The influence of the membrane composition on the kinetic parameters ( k 1, k 2, J a, R a) have been also investigated. The present study shows the importance of the nature of the membrane material in establishing transport efficiency. It appears that n-octane is a much more efficient membrane material than technical solvents generally recommended for extraction processes. Striking variations of the kinetic parameters with the membrane composition were observed. However, only a slight improvement in transport efficiency could be obtained by using multicomponent membranes.
ISSN:0376-7388
1873-3123
DOI:10.1016/0376-7388(94)00068-9