ACID EXTRACTION BY SUPPORTED LIQUID MEMBRANES CONTAINING BASIC CARRIERS?
- 1 January 1983
- journal article
- research article
- Published by Taylor & Francis in Solvent Extraction and Ion Exchange
- Vol. 1 (2) , 299-309
- https://doi.org/10.1080/07366298308918403
Abstract
The extraction of HNO3from aqueous solutions by permeation through a number of supported liquid membranes containing basic carriers dissolved in diethyl benzene has been studied. The results have shown that the best permeations are obtained with long chain aliphatic amines (TLA, Primene JM-TTM) followed by TOPO and then by other monofunctional and bifunctional organophosphorous basic carriers. The influence of an aliphatic diluent on the permeability of HNO3through a supported liquid membrane containing TLA as carrier was also investigated. In this case the permeability to HNO3 decreases as a result of the lower diffusion coefficient of the acid-carrier complex in the more viscous aliphatic solvent.Keywords
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