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D315 Macroporous acrylic acid series weakly alkaline anion exchange resin
1. Description
This product is a kind of anion exchange resin which has polyamine groups in the methyl acrylate-divinylbenzene copolymer, with macroporous structure. This resin has good properties, such as large exchange capacity, small volumn change, strong physical strength, good chemical stability, excellent resistence to contamination and oxidation, speedy exchange capability etc.
2.Typical Physical and Chemical Properties:
①Polymer Matrix Structure： Methyl acrylate-divinylbenzene
②Physical Form and Appearance：light yellow opaque spherical particle
③Ionic Form ,as shipped：Free amine
④Functional Groups：–NH2
⑤Total Capacity, wet, volumetric：≥2.0eq/l min
⑥Moisture Retention,FB  form：54-64%
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.)：15%
⑿Shipping Weight (approx.)：660 -730g/l
⒀Specific Gravity, moist Na+ Form：1.10
⒁pH Range, Stability：1 - 9
3.S ested 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 extraction of drugs, alkaline water and radioactive waste water treatment, extraction and decolorization of biochemical substance ,such as citric acid, vitamin C etc, refining and decolorization of sugar solution, removal of inorganic acids, such as Cl-,SO42- etc, extracting molybdenum in hydrometallurgy and water treatment industries.