Amberlite IRA67 RF

Summary

Product identification

• Product Name: AMBERLITE™ IRA67RF
• Product Type: Industrial Grade Weak Base Anion Exchanger
• Matrix: Crosslinked acrylic gel structure
• Functional group: Tertiary amine
• Ionic form as shipped: Free Base (FB)

Properties

• Physical form: Translucent white spherical beads
• Total exchange capacity: ≥ 1.60 eq/L (FB form)
• Moisture holding capacity: 56 to 64 % (FB form)
• Shipping weight: 660 g/L
• Uniformity coefficient: ≤ 1.70
• Harmonic mean size: 0.700 – 0.950 mm
• Particle size < 0.355 mm: 0.5 % max
• Reversible swelling (FB → Cl⁻): ≤ 30 %

Suggested Operating Conditions

• Maximum operating temperature: 60 °C

• Minimum bed depth: 700 mm

• Service flow rate: 5 to 40 BV*/h

• Regenerant: NaOH

• Regeneration Level: 130 % of ionic load

• Regenerant Concentration: 2 to 4 %

• Minimum contact time: 30 minutes

• Slow rinse: 2 BV at regeneration flow rate

• Fast rinse: 8 to 16 BV at 10 BV/h

• 1 BV (Bed Volume) = 1 m³ solution per m³ resin

Performance

• Operating Capacity: AMBERLITE IRA67RF resin offers an operating capacity 15 to 30 % higher than that of polystyrenic weak base resins. Actual capacity depends on water composition (CO₂ and SO₄ content), specific flow rate, and ionic load.
• Regeneration: Optimum regeneration conditions use caustic soda equivalent to 120 to 140 % of the operating capacity.
• Organic Matter: Exhibits a large reversible capacity for the removal of organic matter due to its aliphatic structure and flexible acrylic polymer structure, allowing for more complete elution of organics.

Hydraulic Characteristics

• Pressure drop: Approximately 10 kPa/m bed depth per 10 m/h at 15 °C.
• Backwash: A backwash flow rate of 6.5 m/h gives approximately 65 % bed expansion at 15 °C.

Limits of Use

Suitable for industrial water treatment. For pharmaceutical, food processing, or potable water applications, consult Rohm and Haas for advice on resin choice and operating conditions.

---

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror