S400 Macroporous Iminodiacetic Chelating Resin
1. Description
S400 chelating ion-exchange resin is cross-linked polystyrene copolymer structure, the introduction of iminodiacetic acid functional group of the weak acid macroporous cation exchange resin, The selectivity of metal ions similar to EDTA, to remove it from the aqueous solution of divalent cations in order of preference is as follows: Cu
2+>VO
2+>UO
22+>Pb
2+>Ni
2+>Zn
2+>Cd
2+>Fe
2+>Be
2+>Mn
2+>Ca
2+>Mg
2+>Sr
2+>Ba
2+>Na
+
Can be seen from the previous, S400 chelating resin demonstrated two divalent metal ions with high selectivity and high affinity. At the same time have been exchanged divalent metal ions in the low PH of the solution is easy to desorption (regeneration) so that chelation group restore exchange adsorption capabilities.
This product is equivalent to the United States: Amberlite IRC-748; Lewatit TP 207/208;
2.Typical Physical and Chemical Properties:
Items |
Specification |
Polymer Matrix Structure |
Crosslinked Polystyrene Divinylbenzene |
Physical Form and Appearance |
Opaque spherical beads |
Functional Groups |
iminodiacetic acid-based |
Ionic Form ,as shipped |
Na+ |
Total Capacity, H + form, wet, volumetric |
≥1.0eq/l min |
Moisture Retention, Na+ form |
50-60% |
Particle Size Range |
0.3mm-1.2mm |
<0.3mm (max.) |
1% |
Uniformity Coefficient (max.) |
1.6 |
effective size |
0.4-0.7mm |
Shipping Weight (approx.) |
710 -750g/l |
Specific Gravity, moist Na+ Form |
1.14 |
pH Range, Stability |
H+ form |
1- 6 |
Na+ form |
6-12 |
Maximum Temperature:Na + Form |
70ºC (158ºF) |
3.Applications
1, selective removal of ions (including the transition element ion)
2, the recovery of heavy metals from electroplating wastewater
3, removal of metal contaminants in solution
4, hydrometallurgy and extraction of heavy metal concentration in solution
5, removal of heavy metals in groundwater