Complexation-ultrafiltration technique was efficiently used to achieve selective separation of nickel(II) and copper(II) ions from an aqueous solution operating in diafiltration mode. Nickel recovery in the permeate of 100% and copper recovery in the retentate of 94.39% were obtained by using the Iris 30 membrane at TMP of 2 bar. Obtained results show that formation of the metal–polymer complex is pH dependent and this is a key-point for the separation. The described methodology can be efficiently used to obtain selective separations by means metal bonding to water soluble polymers.
Selective separation of copper(II) and nickel(II) from aqueous systems by polymer assisted ultrafiltration
MOLINARI, Raffaele;ARGURIO, Pietro;
2006-01-01
Abstract
Complexation-ultrafiltration technique was efficiently used to achieve selective separation of nickel(II) and copper(II) ions from an aqueous solution operating in diafiltration mode. Nickel recovery in the permeate of 100% and copper recovery in the retentate of 94.39% were obtained by using the Iris 30 membrane at TMP of 2 bar. Obtained results show that formation of the metal–polymer complex is pH dependent and this is a key-point for the separation. The described methodology can be efficiently used to obtain selective separations by means metal bonding to water soluble polymers.File in questo prodotto:
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