Mixed-bed Strongly Basic
Styrene-based Anion Exchange Resin


201X7MB, aka 717MB is a uniform and premium grade strongly basic anion exchange resin of type I, which is applicable to the water desalination system. Its uniformity and particle size are optimized accordingly per the operation of industrial water treatment equipment. The mixed bed system combining 201*7MB with 001*7MB can be used in pure and ultrapure water processing in various industries with equivalent properties and performances as M500MB and IRA4000CL.

Matrix: Styrene-divinylbenzene copolymer
Functional groups: -N+(CH3)3
Physical form: Pale yellow transparent spherical beads
Moisture holding capacity(%): 46 to 54%
Ionic form as shipped: Cl form
Total mass exchange capacity: ≥3.6mmol/g
Total bulk exchange capacity: ≥1.2mmol/mL
Moisture true density: 1.04~1.10g/mL
Moisture bulk density: 0.50~0.80g/mL
Particle size: 0.4~0.9mm
Uniformity coefficient: ≤1.4
Integrated beads ratio after grinding test: ≥95℅
Max swelling rate of resin after ionic state transition: Cl ->OH : 30%
Maximum operating temperature: 60°C
Minimum bed depth: 700mm
Service flow rate: 5~25 BV*/h
Maximum service velocity: 40 m/h
Regenerant: NaOH
Level(Counted by 100%): 45~100g/L
Concentration: 2~4℅
Flow rate: 2~8 BV*/h
Minimum contact time: 40min
Slow rinse: 5~8 BV at regeneration flow rate
Fast rinse: 10~20 BV at service flow rate
*1 BV(Bed Volume)= 1 solution per resin