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Highly selective for strong acid anions (e.g., Cl⁻, SO₄²⁻, NO₃⁻) with excellent capacity in low-pH environments.
Thermally stable up to 100 °C, enabling robust performance in demanding industrial processes.
Fast kinetics and low pressure drop due to uniform spherical bead morphology and optimized macroporous structure.
Easily regenerable with dilute alkali solutions (e.g., NaOH), minimizing chemical consumption and waste generation.
Chemically resistant to oxidizing agents and organic solvents, ensuring long service life in complex feed streams.
Decolorization and purification of pharmaceutical intermediates and active pharmaceutical ingredients (APIs).
Removal of acidic impurities from amine-containing process streams in fine chemical synthesis.
Neutralization and chloride/sulfate polishing in electroplating rinse water recovery systems.
Pre-treatment of feedwater for mixed-bed deionization units in high-purity water production.
Recovery and concentration of organic acids (e.g., acetic, citric) via pH-swing adsorption-desorption cycles.
| Chemical Type | Polystyrene-divinylbenzene copolymer with tertiary amine functional groups |
| Product Form | Moist, spherical beads |
| Appearance | Off-white to light yellow, translucent beads |
| Functional Group | –N(CH₃)₂ (dimethylamino) |
| Ion Exchange Capacity (Cl⁻ form) | ≥ 4.8 eq/L (dry basis) |
| Moisture Content | 45–55% (as shipped) |
| Bead Size Range | 0.3–1.2 mm (≥ 95% retained on 16 mesh, passes 60 mesh) |
| Uniformity Coefficient | ≤ 1.7 |
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
