Chelating Resins for Metal Ion Removal

Flaxen macroporous chelating reins are placed in a glass dish.

Chelating resins are a kind of crosslinking functional polymer materials that can form multi-coordination complex with metal ions. Compared with ion exchange resins, chelating resins have a stronger binding force and a higher selectivity with metal ions. They are widely used in chlor-alkali industry for brine decalcification, chromium and boron ion removal, precious metal catalyst recovery, etc.

ASK A QUESTION

Features

  • Chelating resins are milky white to flaxen or gray beads.
  • It is mainly used for the separation and purification of precise metal ions and transition elements.
  • There are imine diacetoxyl, imine diacetoxyl and azylphosphonate functional groups for your option.

Specification

Chelating Resins
Model Functional Groups Ionic Form Mass Exchange Capacity (mmol/g) Volume Exchange Capacity (mmol/ml) Particle Size Range (0.315–1.25 mm) Moisture Content (%) Bulk Density (g/ml) Sphericity after Attrition (%) Reversible Swelling (%)
S400 Imine diacetoxyl Na ≥ 2.00 (Cu2+) ≥ 0.6 (Cu2+) ≥ 95% 52–58 0.71–0.77 ≥ 90% Na→H; < 40
S500 Imine diacetoxyl Na ≥ 2.00 (Cu2) ≥ 0.6 (Cu2+ ) ≥ 95% 52–58 0.71–0.77 ≥ 90% Na→H; < 40
S600 Azylphosphonate (-CH2NHCH2PO3-) Na – ≥ 1.20 0.45–1.00 mm, ≥ 95% 56–62 0.71–0.77 ≥ 90% Na→H; < 45
S700 Thioureido Cl – ≥ 1.10 ≥ 95% 50–60 0.68–0.75 ≥ 90% –
Note
  • Temperature limit (°C): 80;
  • PH range: 1–14.