Economical and Effective

Weakly basic anion exchangers have an effective pH range of 0 to 7. One of the advantages these resins offer is their excellent regeneration capability. Due to their weak basicity, they can be easily regenerated through treatment with NaOH, Na2CO3 or NH3, with only a slight loss of the theoretical amount. This flexibility makes weakly basic anion exchangers a highly economical resin to use and reuse.

Features and Benefits

  • Effective from pH 0 to 7
  • Good regeneration capabilities
  • Economical in use

Product Information

Ion exchanger Amberlite IRA-67
Order number 115959
Matrix Acrylic divinylbenzene copolymer
Functional groups ~NR2
Total ion exchange capacity (mval/mL) >1.6
Maximum reversible swelling % 30
Max. operating temperature °C 60°C
pH range 0-7
Particle size (mm) 0.5-0.75
Moisture content % 35-40
Bulk density (g/l) 720
(100% basis)
NaOH       NH4OH          Na2CO3
Flow Rate (BV/h) 4-8              4-8                   4-8
Concentration (%) 2-4              2-4                   4-8
Level 130% of ionic load
Minimum Contact Time 30 minutes
Rinse Flow Rate 4 BV/h initially to displace regenerant, then 12 BV/h
Rinse Water Requirements 6.68 to 10 BV (Bed volumes)
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