AmberLite FPA52RF

Summary

Product identification

• Product Name: DuPont™ AmberLite™ FPA52RF
• Type: Ion Exchange Resin
• Description: Food-grade, Reduced-Fines, Macroporous, Weak Base Anion Exchange Resin
• Form No.: 45-D00756-en, Rev. 2
• Date: August 2024

Description

DuPont™ AmberLite™ FPA52RF Ion Exchange Resin is a high-capacity, polystyrene, weak base anion exchanger. It features outstanding mechanical and osmotic stability, making it suitable for treating solutions with relatively high dissolved solids, including demineralization of food solutions such as gelatin, citrus juices, sugar juices, sucrose, glucose, and lactose. The resin is highly efficient for strong acid uptake (e.g., HCl and H₂SO₄) when used after a strong acid cation exchanger in the H-form. Its macroporous structure facilitates excellent adsorption and desorption of organic matter. The RF-grade AmberLite™ FPA52RF has reduced fines, which improves system pressure drop and lowers resin losses during backwash.

Key Applications

• Sweetener deashing
• Juice demineralization
• Gelatin demineralization
• Juice deacidification

Typical Properties

Physical Properties

• Copolymer: Styrene-divinylbenzene
• Matrix: Macroporous
• Type: Weak base anion
• Functional Group: Tertiary amine
• Physical Form: Off-white, opaque, spherical beads

Chemical Properties

• Ionic Form as Shipped: Free base (FB)
• Total Exchange Capacity: ≥ 1.60 eq/L
• Water Retention Capacity: 40 – 50%

Particle Size

• Particle Diameter: 600 – 800 µm
• Uniformity Coefficient: ≤ 1.5
• Fines (< 300 µm): ≤ 0.2%
• Note: For additional particle size information, refer to the Particle Size Distribution Cross Reference Chart (Form No. 45-D00954-en).

Stability

• Swelling (FB → HCl): ≤ 25%

Density

• Particle Density: 1.035 – 1.065 g/mL
• Shipping Weight: 660 g/L

Suggested Operating Conditions

Temperature

• Maximum Recommended Operating Temperature (FB-form): 90°C (194°F)

Flowrates

• Service: 2 – 8 BV*/h
• Backwash: See Figure 1
• Slow Rinse: See Figure 1
• Fast Rinse: See Figure 1
• Regeneration flowrate: 2 BV
• Service flowrate: 4 – 8 BV

Contact Time

• Regeneration: ≥ 30 – 45 minutes

Regenerant

• NaOH:
  • Concentration: 2 – 6%
  • Level: 40 – 80 kg/m³ (2.5 – 5 lb/ft³)
• Na₂CO₃:
  • Concentration: 5 – 8%
  • Level: 60 – 130 kg/m³ (3.8 – 8.1 lb/ft³)
• NH₃:
  • Concentration: 2 – 3%
  • Level: 40 – 80 kg/m³ (2.5 – 5 lb/ft³)

* 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 and temperature is shown in Figure 1. Estimated pressure drop as a function of service flowrate and temperature is shown in Figure 2. These pressure drop expectations are valid at the start of the service run with clean water and a well-classified bed.

• Figure 1: Backwash Expansion (Temperature = 10 – 60°C / 50 – 140°F)
• Figure 2: Pressure Drop (Temperature = 10 – 60°C / 50 – 140°F)

Disclaimer

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