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Strong Base Anion Exchange Resin 201X7 SC is a premium-grade, gel-type polystyrene resin crosslinked with divinylbenzene. Specifically engineered for high-efficiency ion exchange, this resin features quaternary ammonium functional groups in the chloride form, ensuring superior selectivity and exceptional capacity for removing strong acid anions from aqueous solutions.
Designed for industrial versatility, the 201X7 SC is ideal for critical applications including pure water preparation, complex wastewater treatment, wet metallurgy, and the precise separation of rare elements. Its robust physical structure and optimized pore distribution make it a reliable alternative to industry standards like Amberlite IRA-400, Amberlite AB-17, and Diaion SA-10A.
| Polymer Structure | Gel polystyrene crosslinked with DVB | Functional Group | -N(CH3)3 |
|---|---|---|---|
| Ionic Form | Cl- | Weight Exchange Capacity | ≥3.5 mmol/g |
| Dry Volume Capacity | ≥1.3 mmol/ml | Real Density | 1.07-1.10 g/ml |
| Bulk Density | 0.67-0.73 g/ml | Water Retention | 42%~48% |
| Particle Size Range | 0.63~1.25 mm (≥95%) | Uniformity Coefficient | ≤1.6 |
Robust gel structure ensures physical durability and chemical stability up to 100℃ operating temperatures.
Fast exchange rates and high capacity reduce cycle times and increase throughput in industrial columns.
Exceptional removal of strong acid anions, achieving ultra-low conductivity for high-purity water needs.
Effective in everything from hydrometallurgy to rare element separation and industrial wastewater.
With a uniformity coefficient ≤1.6, it prevents channeling and ensures optimal liquid distribution.
Efficient desorption using NaOH allows for sustainable reuse and lower long-term operational costs.
Store in wet state above 0℃ to maintain bead integrity and exchange capacity.
Recommended sequence: Alkali → Water → Acid → Water for optimal processing.
Use sand-filtration or flocculation to prevent suspended solids from jamming pores.
Allow adequate headspace to accommodate resin expansion during regeneration.
Use 5% salt water for preservation in closed spaces to prevent dehydration.
Utilize back-flushing or wet packing to eliminate air bubbles within the resin layer.
| Performance Metric | Standard Resin | 201X7 SC Resin |
|---|---|---|
| Exchange Capacity | Moderate (2.0-3.0 mmol/g) | High (≥3.5 mmol/g) |
| Operating Temp | Up to 60℃ | Up to 100℃ |
| Regeneration Efficiency | Standard Consumption | Optimized Low Chemical Use |
| Service Life | Frequent Replacement | Extended Life Cycle |
| Pure Water Quality | Basic Ion Removal | Ultra-Pure Output |
It is primarily used to remove strong acid anions from water, making it essential for pure water production, wastewater treatment, and rare element separation in metallurgy.
Resin should be kept in a wet state above 0℃. For long-term storage, keep it in a closed container with at least 5% salt water to prevent dehydration and preserve activity.
The regeneration process typically involves 2BV of 3-5% HCl followed by 2BV of 2-4% NaOH to restore the resin to its active ionic form.
Yes, the 201X7 SC is designed with a robust polymer structure that supports a maximum operating temperature of 100℃.
Steps like sand-filtration or flocculation are required to remove suspended solids, which otherwise would jam the resin pores and reduce exchange efficiency.
A low uniformity coefficient (≤1.6) ensures more consistent bead size, which reduces pressure drop and prevents "bias currents" or channeling within the column.
