D301G Macroporous styrene series weakly alkaline anion exchange resin
详细说明
1. Description
This is a kind of anion exchange resin which has tertiary amine groups in styrene-divinylbenzene copolymer. It can remove effectively organic coloring matters, inorganic acids and silicates from acidic and nearly neutral medium, with its weak alkalinity. It also can adsorb the big-sized impurities and be used in non-aqueous solution. This resin has good properties, such as highly-efficient regeneration capability, large exchange capacity, strong contamination resistance, excellent physical strength etc.
2.Typical Physical and Chemical Properties:
Items | 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, Free Base form, wet, volumetric | ≥1.40eq/l min |
Moisture Retention, FB form | 50-60% |
Particle Size Range | 0.6mm-1.6mm |
<0.6mm (max.) | 5% |
Uniformity Coefficient (max.) | 1.6 |
effective size | ≥0.6mm |
Reversible Swelling CL-→ FB (max.) | 20-25% |
Shipping Weight (approx.) | 640 -710g/l |
Specific Gravity, moist FB Form | 1.09 |
pH Range, Stability | 1 - 9 |
3.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 | NaOHvolume:resin volume =3:1 |
Regenerant Flow Rate | 2 to 4 BV/h | |
Regenerant contact Time | At least 40 minutes | |
Service Flow Rate | 10-25m/h | |
4.Applications
It is mainly used in hydrometallurgy, extracting the gold from the ore slurry and manufacturing pure water and high purity water.
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