The construction procedure and structure of Ni2 +macromolecular complexes with series of poly styrene and maleic anhydride(PSt/MA)were studied.Both the copolymers and the complexes(Ni-PSt/MA)were characterized by means of FTIR, elemental analysis,gel permeation chromatography(GPC)and atomic adsorption spectrometer(AAS).A further study using PSt/MA as chelating resin to recover Ni2 +was performed.The adsorption behavior for Ni 2+and various relating parameters of PSt/MA in the separation process were determined.The results indicate that the adsorption capability varies with pH values and the PSt/MA can recover Ni2 +in higher adsorption rate and higher selective coefficient from a mixed solution containing light metals such as Ca 2+and Mg2 +impurities.
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