1. Description
This is a kind of anion exchange resin which has quaternary ammonium group [-N(CH3)3OH] in the styrene-divinylbenzene copolymer with the crosslinkage of 4%.Its alkalinity is similar to the general quaternary ammonium base.It can be used as ion exchanger in acidic,neutral and alkaline mediums. This product has good physical strength, high heat resisting property etc.
This product is analogous to: Amberlite IRA402/420; Dowex SBR-P; Purolite A400
2. Executing standard: HG/T2163-1991 DL/T519-2004
3. Constitutional Formula:
4. Typical Physical and Chemical Properties:
Items | Specification |
Matrix | Styrene-divinylbenzene |
Appearance | Light yellow to golden yellow spherical particle |
Functional group | –N+(CH3)3 |
Total exchange capacity (mmol/g) (dry) | ≥3.8 |
Total exchange capacity (mmol/ml) (wet) | ≥1.1 |
Particle size range (%) (0.315-1.25mm) | ≥95 |
Water retention (%) | 50 - 60 |
True wet density (g/ml) | 1.06 - 1.10 |
Apparent wet density（g/ml） | 0.66 - 0.71 |
Physical strength (%) | ≥90 |
Total reversible swelling（%） | Cl → OH 25 - 30 |
Ionic form as shipped | Cl- |
5. Recommended Operating Parameters:
Items | Parameters | |
Operating pH-range | 1 - 14 | |
Maximum operating temperature (°C) | OH- | 40 |
Cl- | 100 | |
Working flow rate (m/h) | 15 - 30 | |
Concentration of regenerant (%) | HCl：4 - 5 ; NaOH：4 - 5 | |
6. Applications:
It is mainly used in pure water and high purity water manufacturing, sugar solution decolorization, wastewater treatment, extraction of biochemical products and radioelements etc.