D375 Macroporous Phenolic Aldehyde Series Weak Alkaline Anion Exchange Resin
About this Product:
This is a macroporous phenolic weakly alkaline anion exchange resin engineered for exceptional performance. It is characterized by its large exchange capacity, strong resistance to permeation, and superior exchange and adsorption capabilities.
This resin’s robust properties also include excellent elution and regeneration characteristics, ensuring efficient and cost-effective operation. The product provides a performance profile comparable to Duolite ES561.
Application
This resin is a high-performance solution primarily used for extraction and decolorization of organic acids in the biochemical, food, and chemical industries.
It is also effectively employed in water treatment for the removal of anions like chloride (Cl−) and sulfate (SO42−), as well as for the removal of inorganic acids during the refining of organic acids like citric acid and malic acid.
Physical and Chemical Properties:
Information | Specification |
Polymer Matrix Structure | Phenolic aldehyde |
Physical Form and Appearance | White opaque spherical particle |
Functional Groups | -NH2、=NH、≡N |
Ionic Form, as shipped | Free Base |
Total Capacity, wet, volumetric | ≥1.8eq/l min |
Moisture Retention, FB form | 48-58% |
Particle Size Range | 0.3mm-1.2mm |
<0.3mm (max.) | 4% |
Uniformity Coefficient (max.) | 1.6 |
Effective size | 0.4-0.8mm |
Reversible Swelling FB –→CL– (max.) | 12% |
Shipping Weight (approx.) | 610 -690g/l |
Specific Gravity, moist FB Form | 1.12 |
pH Range, Stability | 1 – 9 |
Suggested Operating Condition
Maximum Temperature Free Base Form | 100°C (212oF) max. |
Backwash Rate | 40 to 60% 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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