The concentration and separation of $Cu^ {2+}, Ni^ {2+}, Fe^ {3+}$ ions by complexation with poly(ethyleneimine) and using A suitable membrane

The effects of water-soluble polymers on the concentration and separation of the aqueous solutions of the metal ions have been studied. EC-PEG 4000 alloy membrane was used as a filter for the concentration and separation of metallic ions. The permeability of this alloy membrane was studied, and it was found that it is iermeable to $Cu^ {2+}$ and $Ni^ {2+}$ but not to $Fe^ {3+}$ ions. The separation of metal ion pairs was performed by using this property of alloy membranes. In this study, the concentration of metal ions ($Cu^ {2+}, Ni^ {2+}, Fe^ {3+}$) and the separation of metal ion couples have been recorded by using polyethyleneimine (PEI) at different pH values and polymer concentrations in accordance with the spectrophotometric results.

PDF

___

1.Michaels, A.S., Ultrafiltration in Advances in Separation and Purification, E.S. Perry, ed., Wiley, New York, 1968.
2.Şolpan, D., Şahan, M., Concentration and separation of metallic ions from aqueous solutions by using EC-PEG 4000 alloy membranes, J. Appl. Polym.Sci., 48, 2091-2093, 1993.
3.Bart, H.J., Ramaseder, C., Haselgrubler, T., Marr, R., The investigation of osmosis in the liquid membrane technique. Influence of key parameters, Hydrometallurgy, 28, 253-267, 1992.
4.Madsen.R.F., Hyperfiltration and Ultrafiltration in Plater arid Frame Systems, Elsevier, Amsterdam, 1977.
5.Spivakov, B.Y., Geckeler, K.E., Bayer, E., Liquid-phase polymer-based retention the separation of metals by ultrafiltration on polychelatogens, Nature, 315, 313-315, 1985.
6.Jeena,V.R., Janardanan.C., Copper and thorium selective new chelating ion exchange resin of mandelic acid, Indian J. Chem. Technol., 12, 225-228, 2005.
7.Nguyen, Q.T., Jyline, Y., Neel,J., Concentration of cupric and nickel ions by complexation-ultrafiltration. Synergic effect of succinic acid, Desalination, 36, 277-283,1981.
8.Lee, K.L., Hopfenberg, H.B., Stannet, V.T., The effect of I chelation on the selective transport of alkaline-earth metal ^ ions in asymmetric cellulose acetate hyperfiltration membranes, J. Appl. Polym. Sci., 21,1795-1800, 1977
9.Mandel, M., Leyte, J.C., Interaction of poly(methacrylic acid) and bivalent counterions, J. Polym. Sci., 2, 2883-2899, 1964.
10.Dutta, S., Das, A.K., Microwave-assisted synthesis and characterization of a new chelating resin functionalized with 2-aminothiazole: Application in trace level cadmium-mercury separation in biological samples, Indian J. Chem. Technol., 12, 139-144, 2005.