Transport characteristics of some carboxylic acids in the polymeric anion-exchange membrane neosepta-AMH: Batch experiments

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Department of Chemical Engineering, University of Pardubice, nam. Cs. legii 565, 532 10 Pardubice, Czech Republic [1 ]
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Journal of Applied Polymer Science | 2007年 / 106卷 / 02期
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This article reports the transport of selected carboxylic acids-citric acid; oxalic acid; and tartaric acid-through an anion-exchange membrane (Neosepta-AMH) in a two-compartment dialysis cell. These basic data have been completed by measurements of the sorption isotherms. The mass-transfer rate has been quantified by the following transport characteristics: the overall dialysis coefficient; the permeability of the membrane; and the membrane masstransfer coefficient. The sorption experiments have revealed that the Neosepta-AMH membrane exhibits the highest affinity to tartaric acid; whereas the lowest affinity has been found for citric acid. The analysis of the mass-transfer data has shown that the membrane is relatively permeable for oxalic acid: all three transport characteristics for oxalic acid are approximately 1 order of magnitude higher than those for citric or tartaric acid. © 2007 Wiley Periodicals; Inc;
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页码：909 / 916
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