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1. Description
Zheng Guang D840 Resin is a chelating resin containing a weakly acidic azylphosphonate group (-CH2NHCH2PO3- ) in a styrene- diethenic benzene copolymer with a macroporous structure. This product is capable of fixing and chelating one or more cations over a wide range , even in solutions with high concentrations. Its primary application is the separation and recovery of precious metal ions, particularly in secondary brine purification while controlling calcium and magnesium ion penetration during alkaline product production using an ion-exchange membrane.
2. Typical physical and chemical properties
|
PARAMETERS |
DATA |
|
|
Matrix |
Macroporous copolymer of styrene and diethenoid benzene. |
|
|
Appearance |
Milky white or light brown opaque spherical granules |
|
|
Functional group |
Azylphosphonate |
|
|
Ionic form |
What |
|
|
Sphericality after osmotic abrasive wear % |
≥90.0 |
|
|
Total exchange capacity mmol/ml |
≥1.20 |
|
|
Moisture content % |
58.00-64.00 |
|
|
Bulk density g/ml |
0.70-0.77 |
|
|
True density g/ml |
1.08-1.16 |
|
|
Particle size |
Without correction of acid technology % |
(0.450-0.850 mm)≥95.0 |
|
With correction of acid technology % |
(0.600-1.000 mm)≥95.0 |
|
|
Swelling |
H + → Na + % |
≤45.0 |
|
H + → Ca2 + % |
≤20.0 |
|
|
Maximum operating temperature °C |
90.0 |
|
|
Solubility |
Insoluble in water, acids, alkalis and organic solvents. |
|
