AmberLyst 33

Summary

Product identification

• Product Name: DuPont™ AmberLyst™ 33 Polymeric Catalyst
• Product Type: Industrial-grade, Strongly Acidic Catalyst
• Description: Clean, gel, sulfonic acid, polymeric catalyst with low acid leaching for high-purity Bisphenol-A (BPA) production.
• Applications: Condensation (Bisphenol-A)

Typical Properties

Physical Properties

• Copolymer: Styrene-divinylbenzene
• Matrix: Gel
• Type: Strong acid cation
• Functional Group: Sulfonic acid
• Physical Form: Amber, translucent, spherical beads
• Water Retention Capacity: 64 – 70%
• Shrinkage (in solvent): Phenol: 46%
• Shipping Weight: 750 g/L

Chemical Properties

• Ionic Form as Shipped: H⁺
• Concentration of Acid Sites:
  • ≥ 5.00 eq/kg (Dry Weight Capacity)
  • ≥ 1.20 eq/L (Total Exchange Capacity on a water-wet basis)

Particle Size

• Particle Diameter: 550 – 750 µm
• Uniformity Coefficient: ≤ 1.60
• Fines (< 300 µm): ≤ 1.0%
• Oversize (> 1180 µm): ≤ 2.0%

Suggested Operating Conditions

• Maximum Operating Temperature:
  • 130°C (265°F) in non-aqueous media
  • 80°C (175°F) in aqueous media
• Bed Depth, min.: 1000 mm (3.3 ft)
• Pressure Drop, max.: 1 bar (15 psig) across the bed
• Flowrates (Linear Hourly Space Velocity - LHSV): 0.5 – 5 h⁻¹

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