Microemulsion liquid membranes. I. Cobalt transport in a surfactant-dodecane system
| Autor: | K. Osseo-Asare, D.J. Chaiko |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Chromatography
Dodecane chemistry.chemical_element Filtration and Separation Microporous material Biochemistry Micelle chemistry.chemical_compound Membrane chemistry Pulmonary surfactant Chemical engineering Phase (matter) General Materials Science Microemulsion Physical and Theoretical Chemistry Cobalt |
| Zdroj: | Journal of Membrane Science. 42:215-231 |
| ISSN: | 0376-7388 |
| DOI: | 10.1016/s0376-7388(00)82377-7 |
| Popis: | Cobalt transport across supported microemulsion liquid membranes containing reversed micelles of dinonylnaphthalenesulfonic acid (HDNNS) was measured as a function of organic phase composition, aqueous phase composition, stirring rate and temperature. A microporous polypropylene film served as the membrane support. The membrane phase was characterized by interfacial tension and viscosity measurements. Stirring speed and temperature effects suggest that diffusion processes play a major role in the transfer of cobalt across the membrane. The experimental results at relatively low carrier concentration are explained by a membrane transport model involving counter-diffusion of HDNNS reversed micelles and metal-reversed micelle complexes. |
| Databáze: | OpenAIRE |
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