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201×7 Strong-Base Type I (Gel) Anion Exchange Resin - 副本
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（）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.
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.
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- Description
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2.Typical Physical and Chemical Properties:
Items 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
3.Suggested Operating Condition
Maximum Temperature OH- Form 60 °C (140oF) max. CL- Form 80 °C (176oF) max Backwash Rate 50 to 75% Bed Expansion Regenerant Concentration 2-4% NaOH Regenerant dosage NaOH NaOHvolume:resin volume =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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