AmberLite FPA55

Summary

Product Identification

Product Name: AMBERLITE™ FPA55 Ion Exchange Resin Product Type: Food-grade, Gel, Acrylic, Weak Base Anion Exchange Resin Manufacturer: DuPont (now DuPont de Nemours, Inc. and affiliates)

Description

AMBERLITE™ FPA55 is an acrylic, gel, weakly basic, anion exchange resin designed for the nutrition and bioprocessing industries. It offers an improved rinse profile compared to AMBERLITE™ FPA53, providing cost benefits and operational flexibility. Its flexible acrylic polymer matrix ensures excellent physical stability and enhanced resistance to organic fouling, leading to a longer service life. The gel structure provides higher capacity and longer run lengths than macroporous resins. Its higher basicity makes it suitable for removing weak organic acids.

Applications

• Nutrition:
  • Dairy processing
  • Sweetener deashing
  • Sweetener deacidification
  • Organic acid purification
• Bioprocessing:
  • Decolorization
  • Removal of organic color bodies
  • Natural product extraction
  • Recovery of antibiotics from fermentation broth

Typical Properties

Physical Properties

• Copolymer: Crosslinked acrylic
• Matrix: Gel
• Type: Weak base anion
• Functional Group: Tertiary amine
• Physical Form: White, translucent, spherical beads
• Particle Size:
  • Particle Diameter: 500 – 750 µm
  • Finer than 300 µm: ≤ 3.0%
  • Larger than 1180 µm: ≤ 5.0%
• Shipping Weight: 720 g/L

Chemical Properties

• Ionic Form as Shipped: Free base (FB)
• Total Exchange Capacity: ≥ 1.6 eq/L
• Water Retention Capacity: 56 – 64%

Stability

• Swelling (FB → HCl): ≤ 30%

Suggested Operating Conditions

• Maximum Operating Temperature: 50°C (122°F)
• Bed Depth, min.: 700 mm (2.3 ft)
• Flowrates:
  • Service: 4 – 8 BV*/h
  • Backwash: See Figure 1 (Refer to PDF for Figure 1)
  • Regeneration: 2 – 8 BV/h
  • Slow Rinse: Regeneration flowrate for 2 BV
  • Fast Rinse (if applicable): 10 BV/h for 4 – 8 BV
• Contact Time (Regeneration): ≥ 30 – 45 minutes
• Regenerant (NaOH):
  • Concentration: 2 – 4%
  • Level: 130% of ionic load

*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 (Refer to PDF for Figure 1).
• Estimated pressure drop as a function of service flowrate and viscosity is shown in Figure 2 (Refer to PDF for Figure 2). These expectations are valid at the start of the service run with clean feed and a well-classified bed.
• Conditions for Figures:
  • Temperature: 5 – 60°C (41 – 140°F)
  • Viscosity: 1 – 10 cP

Product Stewardship

DuPont is committed to product stewardship, which involves assessing and protecting the safety, health, and environmental aspects of its products. Users are encouraged to review their manufacturing processes and applications to ensure products are used appropriately and safely. Safety data sheets should be consulted prior to use.

Warning: Oxidizing agents like nitric acid can attack ion exchange resins, potentially causing degradation or violent reactions. Consult knowledgeable sources before using strong oxidizing agents.

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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