Dual Bed Macroporous-typeⅠStrong Basic
Polystyrene Anion Exchange Resin


D201DB is a premium grade strong-basic styrene-based anion exchange resin of the macroporous type I that contains quaternary ammonium functional groups, synthesized by special technology. Characterized by the highly uniform and solid structure of its macropore, excellent regeneration efficiency as well as strong rinse performance, this resin is specialized in removing both strong and weak negative-polar organic molecules as well as acids radicals of inorganic salts. Joint-use with D301DB, these 2 resin models are often co-applied in the precise anionic dual-bed water treatment system for upgraded pure and ultrapure water preparation within various industries.

Matrix: Styrene-divinylbenzene copolymer
Functional groups: -N+ (CH3 )3
Physical form: Milky white opaque spherical beads
Moisture holding capacity(%): 50 to 56%
Ionic form as shipped: Cl form
Total mass exchange capacity: ≥3.8mmol/g
Total bulk exchange capacity: ≥1.25mmol/mL
Moisture true density: 1.06~1.10g/mL
Moisture bulk density: 0.65~0.73g/mL
Effective particle size: 0.50~0.70mm
Particle size: 0.45~1.25mm
Uniformity coefficient: ≤1.5
Integrated beads ratio after grinding test: ≥95℅
Max swelling rate of resin after ionic state
Cl->OH : 25%
Maximum operating temperature: 60°C
Minimum bed depth: 700mm
Service flow rate: 10~20 BV*/h
Maximum service velocity: 25 m/h
Regenerant: NaOH
Level(Counted by 100%): 60~150g/L
Concentration: 2~4℅
Flow rate: 2~8 BV/h
Minimum contact time: 40min
Slow rinse: 2 BV at regeneration flow rate
Fast rinse: 4~8 BV at service flow rate
*1 BV(Bed Volume)= 1 solution per resin