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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 which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

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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