D301G Macroporous styrene series weakly alkaline anion exchange resin

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D301G Macroporous styrene series weakly alkaline anion exchange resin
Posting date : Jul 31, 2011
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29-
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D301G Macroporous styrene series weakly alkaline anion exchange resin 1. Description This is a kind of anion exchange resin which has tertiary amine groups in styrene-divinylbenzene copolymer. It can remove effectively organic coloring matters, inorganic acids and silicates from acidic and nearly neutral medium, with its weak alkalinity. It also can adsorb the big-sized impurities and be used in non-aqueous solution. This resin has good properties, such as highly-efficient regeneration capability, large exchange capacity, strong contamination resistance, excellent physical strength etc. 2.Typical Physical and Chemical Properties: ①Polymer Matrix Structure:Crosslinked Polystyrene Divinylbenzene ②Physical Form and Appearance:Ivory opaque spherical particle ③Functional Groups:R-N(CH3)2 ④Ionic Form ,as shipped:Free Base ⑤Total Capacity, Free Base form, wet, volumetric:≥1.40eq/l min ⑥Moisture Retention, FB form:50-60% ⑦Particle Size Range:0.6mm-1.6mm ⑧<0.6mm (max.): 5% ⑨Uniformity Coefficient (max.): 1.6 ⑩effective size:≥0.6mm ⑾Reversible Swelling CL-→ FB(max.):20-25% ⑿Shipping Weight (approx.):640 -710g/l ⒀Specific Gravity, moist FB Form:1.09 ⒁pH Range, Stability:1 - 9 3.Suggested Operating Condition ①Maximum Temperature: Free Base Form 100°C (212oF) max. ②Backwash Rate: 50 to 75% Bed Expansion ③Regenerant Concentration:2-4% NaOH ④Regenerant dosage:NaOH volume:resin volume =3:1 ⑤Regenerant Flow Rate:2 to 4 BV/h ⑥Regenerant contact Time:At least 40 minutes ⑦Service Flow Rate:10-25m/h 4.Applications It is mainly used in hydrometallurgy, extracting the gold from the ore slurry and manufacturing pure water and high purity water.

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