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Int. J. Mol. Sci. 2009, 10(3), 964-975; doi:10.3390/ijms10030964
Article

Kinetics of Chromium(III) Transport Through a Liquid Membrane Containing DNNSA as a Carrier

1
,
2
 and
1, 3,*
1 Faculty of Material Science, Technology and Design, Technical University of Radom, Chrobrego 27, Radom, Poland 2 Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, Warsaw, Poland 3 Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, Poland
* Author to whom correspondence should be addressed.
Received: 5 January 2009 / Revised: 4 March 2009 / Accepted: 6 March 2009 / Published: 9 March 2009
(This article belongs to the Section Green Chemistry)
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Abstract

Kinetics of Cr(III) ions transport through a bulk liquid membrane containing dinonylnaphthalenesulfonic acid (DNNSA) as a carrier, flowing over aqueous phases, has been examined. Special attention has been paid to the effect of the membrane’s velocity flow on the chromium concentration decrease in a feed phase. For the description of relationships of chromium(III) concentration in particular phases with the time, a model based on the assumption of consecutive first-order reactions was proposed. Satisfactory compatibility of experiments and model results have been obtained both for the membrane flow velocities below 0.0034 m·s-1 when the interfaces begin to fluctuate slightly and for low initial Cr(III) concentration in the feed phase.
Keywords: Transport kinetics of chromium(III); dinonylnaphthalenesulfonic acid (DNNSA); bulk liquid membrane Transport kinetics of chromium(III); dinonylnaphthalenesulfonic acid (DNNSA); bulk liquid membrane
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Religa, P.; Gawroński, R.; Gierycz, P. Kinetics of Chromium(III) Transport Through a Liquid Membrane Containing DNNSA as a Carrier. Int. J. Mol. Sci. 2009, 10, 964-975.

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