Poly(acrylic acid-co-acrylamide)(PAAAM)resin was prepared from acrylic acid(AA)and acrylamide(AM)by inverse suspension polymerization.The adsorption of metal ions on PAAAM resin differed greatly at different pH values and initial concentrations.This provided a theoretical basis for the application of PAAAM resin to separate transitional metal ions Cu2+,Ni2+,Co2+.The selectivity for competitive adsorption on PAAAM resin in Cu2+,Ni2+ and Co2+ binary and ternary mixed ion solutions were investigated.It was found that there was higher selectivity on PAAAM resin for Cu2+ ions compared with other metal ions used in this study.
