D301G Macroporous Styrene Series Weak Alkaline Anion Exchange Resin
About this Product:
This weak alkaline anion exchange resin is engineered with tertiary amine functional groups on a durable styrene-divinylbenzene copolymer matrix. Its weak alkalinity allows for the effective removal of organic coloring matters, inorganic acids, and silicates from acidic and near-neutral solutions.
This versatile resin is capable of adsorbing large impurities and is suitable for use in non-aqueous solutions. Key performance features include a large exchange capacity, highly efficient regeneration, strong contamination resistance, and excellent physical strength for a long service life.
Application
This resin is a powerful tool for both hydrometallurgy and water purification. Its primary applications include:
Water Treatment: Used for the manufacturing of pure water and high-purity water, meeting the stringent quality requirements of various industries.
Hydrometallurgy: Highly effective in extracting gold from ore slurry, making it a key component in gold mining and recovery processes.
Physical and Chemical Properties:
Information | Specification |
Polymer Matrix Structure | Crosslinked Polystyrene Divinylbenzene |
Physical Form and Appearance | Ivory opaque spherical particle |
Functional Groups | R-N(CH3)2 |
Ionic Form, as shipped | Free Base |
Total Capacity, wet, volumetric | ≥1.40eq/l min |
Moisture Retention, FB form | 50-60% |
Particle Size Range | 0.6mm-1.6mm |
<0.3mm (max.) | 5% |
Uniformity Coefficient (max.) | 1.6 |
Effective size | ≥0.6mm |
Reversible Swelling FB –→CL– (max.) | 20-25% |
Shipping Weight (approx.) | 640 -710g/l |
Specific Gravity, moist FB Form | 1.09 |
pH Range, Stability | 1 – 9 |
Suggested Operating Condition
Maximum Temperature Free Base Form | 100°C (212oF) max. |
Backwash Rate | 50 to 75% Bed Expansion |
Regenerant Concentration | 2-4% NaOH |
Regenerant dosage NaOH | NaOH vol:resin vol =3:1 |
Regenerant Flow Rate | 2 to 4 BV/h |
Regenerant contact Time | At least 40 minutes |
Service Flow Rate | 10-25m/h |
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