Separation of Copper and Zinc from aqueous solution using Liquid-Membrane-Gel (LMG) containing Trioctylphosphine Oxide TOPO as Carrier

Authors : Nadjet TAOUALIT, İsmail ABIDAT, Djamaleddine HADJBOUSSAAD

Pages : 1-6

Doi:10.22399/ijcesen.323857

View : 90 | Download : 9

Publication Date : 2017-06-28

Article Type : Research Paper

Abstract :Transfer and extraction of metallic species insert ignore into journalissuearticles values(Ag + and Cu 2+ ions); through a flat sheet dense supported-liquid-membrane was investigated previously [1, 2 ] using thin sheets of polybutadiene rubber cross-linked with 0.1% and/or 0.4% of dicumylperoxyde at 160°C for 15 minutes noted BR 1 and for 5 minutes noted BR 2 [3]. In this work, column filled with a liquid-membrane-gel LMG in form of beads impregnated beforehand with the solvating organo-phosphoric carrier the trioctyl phosphine oxide TOPO, was used to study the extraction-concentration-recovery and the transport of Cu insert ignore into journalissuearticles values(II); and Zn insert ignore into journalissuearticles values(II); from an aqueous solution. Extraction of Cu insert ignore into journalissuearticles values(II); at different pH aqueous solutions has been described. The speciation of the extracted complexes in the membrane supported organic phase insert ignore into journalissuearticles values(extractant); was also, performed using the theoretically derived equations to elucidate the stoichiometry and the Cu insert ignore into journalissuearticles values(II); mechanism complexation through the liquid-membrane-gel LMG. Kinetic parameters were calculated from the experimental data. About 86-97 % and 50-82 % of respectively copper and zinc, were extracted from aqueous solutions at pH = 6 according to first-order kinetics and t he separation factor away from the unit . The solvated copper species by TOPO are of the type [Cuinsert ignore into journalissuearticles values(NO 3 ); 2 ]TOPO.
Keywords : Liquid membrane gel, copper

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