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201×4 Strong-Base Type I (Gel) Anion Exchange Resin
201×4（711）is a high capacity, shock resistant, gelular,Type I ,strongly basic anion exchange resin supplied in the chloride or hydroxide form as moist, tough, uniform, spherical beads. 201×4（711）is intended for use in all type of deionization systems and chemical processing applications and is especially suited for use in regenerable mixed beds. it also shows good kinetics of exchange, enabling very low concentration levels of both strong and weak acid anions to be achieved at practical flowrates.
It is mainly used in pure water and high purity water manufacturing, sugar solution decolorization, wastewater treatment, extraction of biochemical products and radioelements etc.
It is mainly used in pure water and high purity water manufacturing, sugar solution decolorization, wastewater treatment, extraction of biochemical products and radioelements etc.
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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 ≥1.3eq/l min Moisture Retention, CL-form 48-58% 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.) 20-30% Shipping Weight (approx.) 660 -720g/l Specific Gravity, moist CL- Form 1.08 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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