Extrepure D375 Macroporous Phenolic Aldehyde Series Weakly Alkaline Anion Exchange Resin

• Acid-Base Property: Alkaline Surface Disposal Agent
• Environmental Protection: Yes
• Color: White
• Appearance: Granulars
• Type: Water Treatment Chemical
• Transport Package: Pallets
• Model NO.: D375
• Specification: 25liter/bag, 1cu. ft/bag
• Trademark: Extrepure
• Origin: China
• HS Code: 39140000
• Production Capacity: 60000cubic Meter Per Year

Product Description

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.
 

2.Typical Physical and Chemical Properties:

Items	Specification
Polymer Matrix Structure	Phenolic aldehyde
Physical Form and Appearance	White opaque spherical particle
Ionic Form ,as shipped	Free Base
Functional Groups	-NH2,=NH,≡N
Total Capacity, wet, volumetric	≥1.8eq/l min
Moisture Retention, FB form	48-58%
Particle Size Range	0.3mm-1.2mm
<0.3mm (max.)	4%
Uniformity Coefficient (max.)	1.6
effective size	0.4-0.8mm
Reversible Swelling FB^-→CL^- (max.)	12%
Shipping Weight (approx.)	610 -690g/l
Specific Gravity, moist  FB  Form	1.12
pH Range, Stability	1 - 9

3.Suggested Operating Condition

 

Maximum Temperature: Free Base Form		100°C   (212^oF) max.
Backwash Rate		40 to 60% 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 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.