D301 (2).jpg
  • D301 (2).jpg

D301 Macroporous styrene series weakly alkaline anion exchange resin

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.
It is mainly used in purification, ash removal and decolorization of sugar solution, decolorization of xylose, desalination and decolorization of starch sugar and water treatment industry. When being used in industrial water treatment, it can be used for manufacturing the pure water and high purity water, electroplating the chromium from wastewater etc.


  • Description

  • 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, FB form, wet, volumetric ≥1.45eq/l min
    Moisture Retention, FB form 50-60%
    Particle Size Range 0.45 mm-1.2mm
    <0.3mm (max.) 1% 
    Uniformity Coefficient (max.) 1.6
    effective size 0.4-0.7mm
    Reversible Swelling   FB→CL- (max.) 20-28%
    Shipping Weight (approx.) 650 -720g/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 NaOH volume: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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