AmberLyst 19

Summary

Product identification

• Product Name: DuPont™ AmberLyst™ 19 Polymeric Catalyst
• Type: Industrial-grade, Strongly Acidic Catalyst
• Description: Bead-form, gel, sulfonic acid ion exchange resin developed for heterogeneous catalysis. Highly active esterification catalyst for the reaction of acrylic acid with methanol and ethanol to form the corresponding acrylates.

Applications

• Esterification

Typical Properties

Physical Properties

• Copolymer: Styrene-divinylbenzene
• Matrix: Gel
• Type: Strong acid cation
• Functional Group: Sulfonic acid
• Physical Form: White to amber, translucent, spherical beads

Chemical Properties

• Ionic Form as Shipped: H⁺
• Concentration of Acid Sites: ≥ 1.80 eq/L (Total Exchange Capacity on a water-wet basis)
• Water Retention Capacity: 48 – 54%
• Particle Size:
  • < 400 µm: ≤ 1%

  • 1180 µm: ≤ 2%

• Stability (Friability):
  • Average: ≥ 350 g/bead
  • Minimum: > 200 g/bead
  • Attrition: ≥ 95%
• Swelling (Na⁺ → H⁺): 8%
• Density: 785 g/L (Shipping Weight)

Suggested Operating Conditions

• Maximum Operating Temperature: 120°C (248°F)
• Bed Depth, min.: 600 mm (2.0 ft)
• Flowrates:
  • Operating: 5 – 50 m/h (2 – 20 gpm/ft²)
  • Linear Hourly Space Velocity (LHSV): 0.5 – 5 h⁻¹
  • Backwash: See Figure 1 in the PDF document.
  • Regeneration: 1 – 10 m/h (0.4 – 4 gpm/ft²)
  • Displacement Rinse: 1 – 10 m/h (0.4 – 4 gpm/ft²)
  • Fast Rinse: 5 – 50 m/h (2 – 20 gpm/ft²)
• Total Rinse Requirement: 3 – 6 BV*
• Regenerant:
  • H₂SO₄: 1 – 10%
  • HCl: 4 – 8%

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

Hydraulic Characteristics

Estimated bed expansion and pressure drop are provided in the PDF document, with figures and equations for calculating values at different temperatures.

• Backwash Expansion: Figure 1 shows estimated bed expansion as a function of backwash flowrate and ionic form at 25°C (77°F).
• Pressure Drop: Figure 2 shows estimated pressure drop as a function of service flowrate at 20°C (68°F) for clean water and a well-classified bed at the start of a service run.

Disclaimer This extracted summary may omit figures, footnotes, or revisions. Contractual data must be confirmed against the specific OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror