Abstract
Creeping film pertraction (CFP) is a new liquid membrane technique for simultaneous removal and concentration of dissolved species from their diluted aqueous solutions. A mobile organic membrane interposed between two creeping aqueous films, a donor (feed) solution and an acceptor (strip) liquor, selectively transports the specified species. CFP is a continuous mass transfer process in which eddy diffusion controls the mass fluxes in all three liquid films. A laboratory scale pertractor—CFP-50—was used to study the effects of principal process parameters on pertraction efficiency in the case of copper transport across a membrane of parafinic oil, containing 2% (vol.) commercial oxime extractant ACORGA P-5100 as carrier.
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