Selective removal of Ag(I) and Cu(II) by plasticizer membranes with N-(Diethylthiophosphoryl)-Aza[18]Crown-6 as a carrier
 
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1
Department of Metal Extraction and Recirculation, Czestochowa University of Technology
2
Jan Dlugosz University of Czestochowa
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Department General Building Engineering and Building Physics, Czestochowa University of Technology
CORRESPONDING AUTHOR
Cezary Kozlowski   

Institute of Chemistry and Environment Protection, Jan Dlugosz University of Czestochowa, 42-201 Czestochowa, Armii Krajowej 13/15, Poland
Publication date: 2014-01-01
 
Physicochem. Probl. Miner. Process. 2014;50(1):237–247
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ABSTRACT
The competitive transport of equimolar mixtures of Ag(I) and Cu(II) ions from aqueous source phase (cMe = 0.001 mol/dm3) across polymer inclusion membranes PIMs with N-(diethylthiophosphoryl)- aza[18]crown-6 as ion carriers, was studied. The influence of pH of source phase and metal concentration on an efficiency of silver(I) transport through polymer inclusion membranes containing cellulose triacetate as the support and o-nitrophenyl pentyl ether as the plasticizer was studied. The transport selectivity order for the PIM with N-(diethylthiophosphoryl)-aza[18]crown-6 was: Ag(I) >> Cu(II). The metal cations transport rate can be explained by size and nature of substituent in lariat ether molecule, which prefer formation of Ag(I) complex in the membrane phase.
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