AmberLyst 35 WET

Summary

Product identification

• Product Name: DuPont™ AmberLyst™ 35WET Polymeric Catalyst
• Type: Industrial-grade, Strongly Acidic Catalyst
• Description: Macroporous, strongly acidic, cationic, polymeric catalyst with a styrene-divinylbenzene matrix.
• Functional Group: Sulfonic acid
• Physical Form: Black, opaque, spherical beads

Applications

• Etherification (MTBE, ETBE, TAME)
• Dimerization (isooctane)

Typical Properties

Physical Properties

• Matrix: Macroporous
• Surface Area (Nitrogen BET): 50 m²/g
• Total Pore Volume: 0.35 cc/g
• Average Pore Diameter: 300 Å
• Water Retention Capacity: 51 – 57%
• Shrinkage (in solvent):
  • Methanol: 4.5%
  • MTBE: 10.5%
  • Hexane: 21%
  • Dry: 40%
• Shipping Weight: 800 g/L

Chemical Properties

• Ionic Form as Shipped: H⁺
• Concentration of Acid Sites:
  • ≥ 5.20 eq/kg (Dry Weight Capacity)
  • ≥ 1.90 eq/L (Total Exchange Capacity on a water-wet basis)

Particle Size

• Particle Diameter: 700 – 950 µm
• Uniformity Coefficient: ≤ 1.70
• Fines (< 425 µm): ≤ 1.0%
• Oversize (> 1180 µm): ≤ 4.0%

Suggested Operating Conditions

• Maximum Operating Temperature: 150°C (300°F)
• 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
• Backwash: See Figure 1 in the official PDF.

Hydraulic Characteristics

• Estimated bed expansion as a function of backwash flowrate and temperature (Figure 1).
• Estimated pressure drop as a function of service flowrate and temperature (Figure 2). These expectations are valid at the start of a service run with clean water and a well-classified bed.
• Temperature for hydraulic figures: 10 – 90°C (50 – 194°F)

Product Stewardship

DuPont is concerned with the safety, health, and environmental aspects of its products. Customers are encouraged to review manufacturing processes and applications to ensure safe and intended use. Safety data sheets should be consulted prior to use.

WARNING: Oxidizing agents such as nitric acid can attack organic ion exchange resins, potentially causing degradation or violent exothermic 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