D375 Macroporous Phenolic aldehyde series weakly alkaline anion exchange resin

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D375 Macroporous Phenolic aldehyde series weakly alkaline anion exchan...
Posting date : Jul 31, 2011
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29-
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D375 Macroporous Phenolic aldehyde series weakly alkaline anion exchange resin 1. Description This is a kind of phenolic weakly alkaline anion exchange resin which has macroporous structure. It has large exchange capacity, strong resistance to permeation, good exchange and adsorption capability, and excellent elution and regeneration properties. This product is analogous to: Duolite ES561 2.Typical Physical and Chemical Properties: ①Polymer Matrix Structure: Phenolic aldehyde ②Physical Form and Appearance:White opaque spherical particle ③Ionic Form ,as shipped:Free amine ④Functional Groups:-NH2、=NH、≡N ⑤Total Capacity, wet, volumetric:≥1.8eq/l min ⑥Moisture Retention,FB form:48-58% ⑦Particle Size Range:0.3mm-1.2mm ⑧<0.3mm (max.): 4% ⑨Uniformity Coefficient (max.) :1.6 ⑩effective size:0.4-0.8mm ⑾Reversible Swelling FB –→CL- (max.):12% ⑿Shipping Weight (approx.):610 -690g/l ⒀Specific Gravity, moist FB Form:1.12 ⒁pH Range, Stability:1 - 9 3.Suggested Operating Condition ①Maximum Temperature: Free Base Form 100°C (212oF) max. ②Backwash Rate: 40 to 60% 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 extraction of organic acid and decolorization in biochemistry, food, chemical industries etc. It is also used in water treatment to remove Cl- and SO2-, removing inorganic acid when refining the citric acid, malic acid etc.

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