201×7 Strong-Base Type I (Gel) Anion Exchange Resins
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Product Line Description
201×7 (717) is a clear gel Type 1 strong-base anion exchanger with both high operating capacity and the ability to achieve low residual silica levels. It has a clear gel structure, showing excellent regeneration efficiency and rinse characteristics. 201×7 (717) has exceptional physical stability for a conventional gel-type resin which permits a long life without the development of excessive pressure drop; it also shows good kinetics of exchange, enabling very low concentration levels of both strong and weak anions to be achieved at practical flowrates.It is mainly used in pure water and high purity water manufacturing, extraction and decolorization of biochemical products, wastewater treatment, separation of organics, extraction of radioelements, extracting the tungsten and molybdenum in hydrometallurgy etc.
| Specifications | |
|---|---|
| Brands | HUAMO JMCC |
| Typical Physical and Chemical Properties | |
| Polymer Matrix Structure | Crosslinked Polystyrene Divinylbenzene |
| Physical Form and Appearance | Spherical Beads |
| Functional Groups | -N(CH3)3OH |
| Ionic Form (As Shipped) | CL– |
| Chlorine (CL–) Form, Wet, Volumetric Total Capacity | ≥ 1.4 eq/l min |
| Chlorine (CL–) Form Moisture Retention | 42 to 48 % |
| Particle Size Range | 0.3 to 1.2 mm |
| Maximum Percentage (%) for < 0.3 Millimeter (mm) Particle Size | 1 % |
| Maximum Uniformity Coefficient | 1.6 |
| Effective Size | 0.4 to 0.7 mm |
| Maximum Reversible Swelling Chlorine (CL–) → Hydroxide (OH–) | 18 to 25 % |
| Approximate Shipping Weight | 670 to 730 g/L |
| Moist Chlorine (CL–) Form Specific Gravity | 1.09 |
| Potential of Hydrogen (pH) Stability Range | 0 to 14 pH |
| Suggested Operating Condition | |
| Hydroxide (OH–) Form Maximum Temperature | 60 ºC 140 ºF |
| Chlorine (CL–) Form Maximum Temperature | 80 ºC 176 ºF |
| Backwash Rate (Bed Expansion) | 50 to 75 % |
| Regenerant Concentration (Sodium Hydroxide (NaOH)) | 2 to 4 % |
| Regenerant Dosage (Sodium Hydroxide (NaOH)) | Sodium Hydroxide (NaOH) Volume:Resin Volume = 3:1 |
| Regenerant Flow Rate | 2 to 4 BV/h |
| Regenerant Contact Time | At Least 40 min |
| Service Flow Rate | 10 to 25 mph |
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