330 Epoxy weakly alkaline anion exchange resin

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330 Epoxy weakly alkaline anion exchange resin
Posting date : Jul 31, 2011
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29-
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330 Epoxy weakly alkaline anion exchange resin 1. Description This is a kind of weakly alkaline anion exchange resin with primary amine, secondary amine, tertiary amine and quaternary amine groups [-NH2、=NH、=N、=N-] in the epoxy chloropropane-polyethylene polyamine copolymer. It can be used as ion exchanger in acidic,neutral and alkaline mediums, with large exchange capacity and speedy exchange ability. 2.Typical Physical and Chemical Properties: ①Polymer Matrix Structure:Epoxy ②Physical Form and Appearance:Golden yellow spherical particle ③Ionic Form ,as shipped:Free amine ④Functional Groups:-NH2、=NH、=N、=N- ⑤Total Capacity, wet, volumetric:≥2.1eq/l min ⑥Moisture Retention,FB form:60-80% ⑦Particle Size Range:0.3mm-1.2mm ⑧<0.3mm (max.): 1% ⑨Uniformity Coefficient (max.) :1.6 ⑩effective size:0.4-0.7mm ⑾Reversible Swelling FB –→CL- (max.) :30-40% ⑿Shipping Weight (approx.):650 -720g/l ⒀Specific Gravity, moist FB Form:1.10 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 water treatment to remove Cl- and SO2-, removing inorganic acid, extracting organic acid and decolorization when refining the citric acid, streptomycin, malic acid, amino acid etc. And it also can be used in recycling of copper and silver ions.

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