Summary
Ultrafiltration is a membrane process permitting the separation and concentration of metal ions, such as Cd2+ and Cr3+ ions, which have previously been complexed with macromolecules ; the entities formed are retained, being of a higher molar mass and a larger size than the membrane pores. The polymers used are derived from polyacrylic acid onto which other functional groupings have been grafted, thereby improving their complexing properties as well as their water solubility. This technique not only permits the recuperation of metals but also the purification of effluents (over 99.5% of these metals ([M0] = 0.001 M) may be retained.
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References
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© 1991 ECSC, EEC, EAEC, Brussels and Luxembourg
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Sciers, V., Persin, F., Rumeau, M. (1991). Separation of Metal Ions by Complexation-Ultraftltration. In: Cecille, M.L., Casarci, M., Pietrelli, L. (eds) New Separation Chemistry Techniques for Radioactive Waste and Other Specific Applications. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3654-9_29
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DOI: https://doi.org/10.1007/978-94-011-3654-9_29
Publisher Name: Springer, Dordrecht
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