Chelating Resins for Metal Ion Removal
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.
- 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.
|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%||–|