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D330 Macroporous styrene series weakly alkaline anion exchange resin

This is a kind of weakly alkaline anion exchange resin with primary amine, secondary amine, tertiary amine and quaternary amine groups [-NH2、=NH、=N、=N-] in the epoxy chloropropane-polyethylene polyamine copolymer. It can be used as ion exchanger in acidic,neutral and alkaline mediums, with large exchange capacity and speedy exchange ability.
It is mainly used in water treatment to remove Cl- and SO2-, removing inorganic acid, extracting organic acid and decolorization when refining the citric acid, streptomycin, malic acid, amino acid etc. And it also can be used in recycling of copper and silver ions.


  • Description

  • 2.Typical Physical and Chemical Properties:

    Items Specification
    Polymer Matrix Structure Epoxy
    Physical Form and Appearance Golden yellow spherical particle
    Ionic Form ,as shipped Free Base
    Functional Groups -NH2、=NH、=N、=N-
    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 1.1
    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


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