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S400 The chelating type ion exchange resin is a weakly acidic macroporous cation exchange resin which introduces an iminodiacetic acid functional group on a crosslinked polystyrene copolymer, and the resin can selectively extract a divalent heavy metal cation from an aqueous solution because the resin Having an iminodiacetic acid chelating group, the selectivity to m
Product Name: S400 Chelating Ion Exchange Resin
Description
S400 The chelating type ion exchange resin is a weakly acidic macroporous cation exchange resin which introduces an iminodiacetic acid functional group on a crosslinked polystyrene copolymer, and the resin can selectively extract a divalent heavy metal cation from an aqueous solution because the resin Having an iminodiacetic acid chelating group, the selectivity to metal ions is similar to EDTA, and the order of selection for removing divalent cations from aqueous solution is as follows: Cu2+﹥VO2+﹥UO22+﹥Pb2+﹥Ni2+﹥Zn2+﹥Cd2+﹥Fe2+﹥Be2+﹥Mn2+﹥Ca2+﹥Mg2+﹥Sr2+﹥Ba2+﹥Na+
As can be seen from the above, the S400 chelating resin exhibits high selectivity and high affinity for divalent metal ions. At the same time, the divalent metal ions exchanged are easily desorbed (regenerated) in a low pH solution, and the chelating groups are restored to the exchange adsorption function.
This product is equivalent to the United States：Amberlite IRC-748；Lewatit TP 207/208;
Executive standard: Q/ASX26-2008.
Physical and Chemical Performance Indicators
|
Resin structure |
Styrene-divinylbenzene |
|
Exterior |
Milky white beige ball granules |
|
Functional group |
Imine diacetoxyl |
|
Mass exchange capacity (mmol/g) |
≥ 2.00（Cu2+） |
|
Volume capacity min eq/l |
≥ 0.6 |
|
Particle size (0.315-1.25mm) |
≥ 95% |
|
Moisture (%) |
52.0 - 58.0 |
|
Specific density (g/ml) |
1.15 - 1.25 |
|
Bulk density (g/ml) |
0.71 - 0.77 |
|
Max swelling rate (%) |
Na+→H+ ＜40 |
|
Uniformity coefficient |
＜1.6 |
|
Effective diameter mm |
0.4 - 0.7 |
|
Ionic form |
Na+ |
|
Storage temperature ℃ |
-20 - 40 |
|
Storage period year |
2 |
* Reference Indicator When Using
|
PH Scope of use |
1-14 |
|
Maximum use temperature °C |
80 |
|
Bed depth |
> 1000 mm |
|
Pressure drop |
< 250 kPa |
|
Specific velocity |
< 30 BV/h |
|
Running flow rate m/h |
10-20 |
* Regeneration
|
1. Regenerant injection |
HCl: 7%, 3xBV |
|
2. Rinse with pure water |
3xBV |
|
3. Regenerant injection |
NaOH: 4%, 2xBV |
|
4. Rinse with pure water |
Until pH ≤ 10 |
* The suggested indicators refer to the use under normal operating conditions. It is based on tests in practice of projects and applications. This can be various in different applications.