LEWATIT® K 2625

Summary

Product identification

Lewatit® K 2625 is a strongly acidic, macroporous, palladium-doped, polymer-based resin in spherical bead form, with sulfonic acid groups. It is ideally suited as a multifunctional heterogeneous catalyst for organic reactions.

Applications

Lewatit® K 2625 is specially designed for use in the:

• Etherol process, offering high sulfur resistivity and tolerance for mercaptan sulfur, total sulfur, and diolefins.
• Production of MIBK.

General Description

• Ionic form as shipped: H⁺ / Pd²⁺ (2 g Pd/l)
• Functional group: Sulfonic acid
• Matrix: Crosslinked polystyrene
• Appearance: Opaque beads

Physical and Chemical Properties

• Total capacity: min. 1.4 eq/l
• Uniformity Coefficient: max. 1.6
• Bead size: 0.4 - 1.2 mm (> 90%)
• Effective size: 0.50 - 0.62 mm
• Fines (< 0.315 mm): typical < 0.5%
• Bulk density: approx. 760 g/l
• Water retention: 57 - 63 wt.%
• Surface area (BET): approx. 40 m²/g
• Pore volume: approx. 0.6 cm³/g
• Average pore diameter: 65 nm

Operating limits

• Temperature range: -20 to 120 °C
• Storability (max. years): 2 years
• Storage temperature range: -20 to 40 °C

Additional Information & Regulations

• Safety precautions: Avoid contact with strong oxidants (e.g., nitric acid) as violent reactions can occur. Refer to the safety data sheet for detailed information on transport, storage, handling, safety, and ecology.
• Disposal: Dispose of ion exchange resins according to European waste nomenclature.
• Storage: Recommended to store above the freezing point of water, under roof, in dry conditions, and out of direct sunlight. If frozen, allow to thaw gradually at ambient temperature before handling or use. Do not accelerate thawing.

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