AmberLite FPA54

Summary

Product identification

AMBERLITE™ FPA54 Ion Exchange Resin is a food-grade, highly porous, weak base anion exchange resin based on a crosslinked phenol-formaldehyde matrix.

Description

This resin is designed for applications requiring the removal of high molecular weight, organic, color bodies and for the purification of citric and lactic acids from fermentation. Its low-swelling, hydrophilic phenolic matrix provides excellent osmotic and physical stability. It exhibits high selectivity for sulfates and phosphates.

Applications

• Removal of high molecular weight, organic, color bodies
• Purification of citric and lactic acids from fermentation

Typical Properties

Physical Properties

• Copolymer: Crosslinked phenol-formaldehyde polycondensate
• Matrix: Highly porous
• Type: Weak base anion
• Functional Group: Tertiary amine
• Physical Form: Gray, opaque, granules

Chemical Properties

• Ionic Form as Shipped: Free base (FB)
• Total Exchange Capacity: ≥ 1.8 eq/L
• Water Retention Capacity: 60 – 65%

Particle Size

• Particle Diameter: 470 – 740 µm
• Finer than 300 µm: ≤ 2.0%
• Larger than 1180 µm: ≤ 1.0%

Density

• Shipping Weight: 650 g/L

Suggested Operating Conditions

• Maximum Operating Temperature: 50°C (122°F)
• Bed Depth, min.: 700 mm (2.3 ft)

Flowrates

• Service: ≤ 15 BV*/h
• Backwash: See Figure 1 in the official PDF for details.

Regeneration

• Regenerants: NaOH, Na₂CO₃, NH₃
• Flowrates: 2 – 8 BV/h for all regenerants.
• Concentration (NaOH): 2 – 6%
• Concentration (Na₂CO₃): 5 – 8%
• Concentration (NH₃): 1 – 4%
• Level (NaOH): 40 – 80 kg/m³ (2.5 – 5 lb/ft³)
• Level (Na₂CO₃): 65 – 110 kg/m³ (4.1 – 6.9 lb/ft³)
• Level (NH₃): 20 – 40 kg/m³ (1.3 – 2.5 lb/ft³)
• Contact Time (Regeneration): ≥ 30 – 45 minutes

Rinsing

• Slow Rinse: Regeneration flowrate for 4 BV
• Fast Rinse (if applicable): 10 BV/h for 8 – 12 BV

1 BV (Bed Volume) = 1 m³ solution per m³ resin or 7.5 gal per ft³ resin

Hydraulic Characteristics

Estimated bed expansion as a function of backwash flowrate at 20°C (68°F) is shown in Figure 1 (refer to the official PDF).

Estimated pressure drop as a function of service flowrate and viscosity (1–10 cP) at 20°C (68°F) is shown in Figure 2 (refer to the official PDF). These expectations are valid at the start of the service run with clean feed and a well-classified bed.

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