Abstract: In this paper the synthesis and chelating property of a macroporous chelate resin,poly-N-salicylidene vinylaniline (PSVA) are studied. It is found that the resin has agood adsorbability for Cu²⁺ at pH = 5 and for Fe³⁺ in 0.17 mol/L HCl. The adsorptioncapacity was 1.35 mmol Cu²⁺ per g PSVA. A satisfactory result was obtained, usingPSVA resin in removing trace amount of Cu²⁺ from nickel electroplating solution andwasted water. The resin can be regenerated by successively washing with mixture of 5% EDTA and 1.5 mol/L H₂SO₄.

Key words: Chelate resin, Poly--N-salicylidene vinylaniline, Synthesis, Cupricion