Product Description

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:

Items	Specification
Polymer Matrix Structure	Epoxy
Physical Form and Appearance	Golden yellow spherical particle
Ionic Form ,as shipped	Free Base
Functional Groups	-NH₂,=NH,=N,=N-
Total Capacity, wet, volumetric	≥2.1eq/l min
Moisture Retention, FB form	60-80%
Particle Size Range	0.3mm-1.2mm
<0.3mm (max.)	1%
Uniformity Coefficient (max.)	1.6
effective size	0.4-0.7mm
Reversible Swelling FB^-→CL^- (max.)	30-40%
Shipping Weight (approx.)	650 -720g/l
Specific Gravity, moist FB Form	1.10
pH Range, Stability	1 - 9

3.Suggested Operating Condition

Maximum Temperature: Free Base Form		100°C (212oF) 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

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.