330 Epoxy Weak Alkaline Anion Exchange Resin
About this Product:
This is a weak alkaline anion exchange resin with a unique composition, featuring a blend of primary, secondary, tertiary, and quaternary amine functional groups (−NH2,=NH,=N,=N+) within an epoxy chloropropane-polyethylene polyamine copolymer matrix. Its advanced structure gives it a large exchange capacity and speedy exchange ability, allowing it to function effectively across a wide pH range, including acidic, neutral, and alkaline mediums.
Application
This resin is primarily used in water treatment to effectively remove anions like chloride (Cl−) and sulfate (SO42−), as well as to remove inorganic acids.
Its capabilities extend to various purification processes, including the extraction and decolorization of organic acids during the refining of citric acid, streptomycin, malic acid, and amino acids. Additionally, it is a valuable tool for the recycling of copper and silver ions.
Physical and Chemical Properties:
Information | Specification |
Polymer Matrix Structure | Epoxy |
Physical Form and Appearance | Golden yellow spherical particle |
Functional Groups | -NH2、=NH、=N、=N- |
Ionic Form, as shipped | Free Base |
Total Capacity, wet, volumetric | ≥2.1eq/l min |
Moisture Retention, FB form | 60-80% |
Particle Size Range | 0.3mm-1.2mm |
<0.3mm (max.) | 1% |
Uniformity Coefficient (max.) | 1.6 |
Effective size | 0.4-0.7mm |
Reversible Swelling FB –→CL– (max.) | 30-40% |
Shipping Weight (approx.) | 650 -720g/l |
Specific Gravity, moist FB Form | 1.10 |
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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