201×7 Strong-Base Type I (Gel) Anion Exchange Resin
About this Product:
The 201×7 (717) is a clear gel, Type I strong-base anion exchange resin designed for high-purity applications. It delivers a high operating capacity and the ability to produce water with exceptionally low silica levels.
This resin offers excellent physical stability, ensuring a long service life and minimal pressure drop. Its rapid exchange kinetics and efficient regeneration characteristics allow for the effective removal of both strong and weak acid anions, making it a reliable solution for producing ultra-pure water.
Application
The 201×7 (717) resin is a versatile solution with a wide range of applications, including:
Specialty Extractions: Employed in the extraction and decolorization of biochemical products, the separation of radioelements, and the recovery of metals like tungsten and molybdenum in hydrometallurgy.
Water Purification: Essential for the production of both pure water and high-purity water, meeting the strict standards of various industries.
Environmental Remediation: Used for wastewater treatment and the separation of organic pollutants.
Physical and Chemical Properties:
Information | Specification |
Polymer Matrix Structure | Crosslinked Polystyrene Divinylbenzene |
Physical Form and Appearance | Spherical beads |
Functional Groups | [-N(CH3)3OH] |
Ionic Form, as shipped | CL– |
Total Capacity, CL– form, wet, volumetric | ≥1.4eq/l min |
Moisture Retention, CL–form | 42-48% |
Particle Size Range | 0.3mm-1.2mm |
<0.3mm (max.) | 1% |
Uniformity Coefficient (max.) | 1.6 |
Effective size | 0.4-0.7mm |
Reversible Swelling CL–→ OH –(max.) | 18-25% |
Shipping Weight (approx.) | 670 -730g/l |
Specific Gravity, moist CL– Form | 1.09 |
pH Range, Stability | 0 – 14 |
Suggested Operating Condition
Maximum Temperature OH– Form CL– Form | 60 °C (140oF) max. 80 °C (176oF) max |
Backwash Rate | 50 to 75% Bed Expansion |
Regenerant Concentration | 2-4% NaOH |
Regenerant dosage NaOH | NaOH vol:resin vol=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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