Transport of perrhenate anions across plasticizer membranes with basic ion carriers
A. Nowik-Zając 1  
C. Kozłowski 1
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Jan Dlugosz University of Czestochowa
Wroclaw University of Technology
A. Nowik-Zając   

Institute of Chemistry and Environment Protection, Jan Dlugosz University of Czestochowa, 42-201 Czestochowa, Armii Krajowej 13, Poland
Publication date: 2010-01-01
Physicochem. Probl. Miner. Process. 2010;44(1):179–186
Transport experiments across polymer inclusion membranes (PIMs) are presented. The physical immobilization of trioctylamine (TOA) or methyltrioctylammonium chloride (TOMACl) as the ion carriers and o-nitrophenyl octyl ether as the plasticizer in cellulose triacetate as the support were used to prepare polymer inclusion membranes. The competitive transport of ReO4- ions from nitrate aqueous solutions through a PIM with TOA or TOMACl was investigated. The effect of the pH of the source aqueous phase on ReO4- transport from nitrate solution was studied. The higher efficiency of ReO4- removal was observed with use of the basic carrier. TOMACl. The selectivity of competitive oxoanions transport from the source phase decreases as follows: ReO4- > NO3- > SO42-. This order of permeability correlates well with the energy of transported anions hydration.