Salicyhydroximic acid type chelate resin and preparation method thereof

The invention belongs to the field of chelate resin materials and provides a salicyhydroximic acid type chelate resin and a preparation method thereof for solving the problem that the existing hydroximic acid can not be repeatedly used in sewage treatment. The preparation method comprises that a ligand salicyhydroximic acid is bonded to the surface of a chloromethylated polystyrene microsphere to obtain the salicyhydroximic acid type chelate resin, and bonding quantity of the ligand salicyhydroximic acid is 0.38-0.43g/g. The salicyhydroximic acid type chelate resin has strong coordination complexing power to metal ions, can realize enrichment recycling of multiple precious metal ions, especially has excellent adsorbability and selectivity to heavy metal ions such as copper, nickel, lead, iron, zinc and chromium and can be effectively applied to treatment of sewage in the industries such as electroplating, electronics and heavy metals and extraction of rare earth minerals; besides, the bonding quantity of sali