LEWATIT® K 7333

Summary

Product identification

• Product Name: Lewatit® K 7333
• Description: Strongly basic, gel-type, palladium-doped, polymer-based resin in spherical bead form.
• Functional Group: Quaternary ammonium (OH⁻/Pd)
• Matrix: Styrenic
• Structure: Gel
• Appearance: Grey, transparent
• Common Description: OH⁻/Pd
• Delivery Form: OH⁻/Pd

Operating limits

• Stability pH Range: 5-14
• Stability Temperature Range: 1-40 °C
• Operating Temperature (max): 40 °C
• Operating pH Range During Exhaustion: 5-14
• Max. Pressure Loss During Operation: 250 kPa

Feed water

• Application: Designed to remove dissolved oxygen from water.
• Process: A suitable reducing agent, such as hydrogen, is dissolved in the water to be treated and then passed through a bed of the resin.
• Resulting Oxygen Concentration: Residual oxygen concentrations of less than 20 ppb can be obtained.
• Note: Loss of catalytic activity may be caused by poisons such as mercury, cadmium, sulfides, organic contaminants (humates), or microbial growth. Maximum catalytic activity requires sufficient dissolved reducing agent.

Product water

• Application: Especially suitable for the removal of dissolved oxygen in the production of ultrapure water.

Electrical

No information available.

Mechanical / hydraulic

• Uniformity Coefficient (max): 1.1
• Mean Bead Size (d₅₀): 0.64 (+/- 0.05) mm
• Bulk Density (for shipment, +/- 5%): 700 g/L
• Density (approx.): 1.07 g/mL
• Water Retention (delivery form, approx.): 58-63 % by weight
• Bed Depth (for single column, min): 900 mm
• Backwash Bed Expansion (per m/h at 20°C): 10 %
• Specific Pressure Loss (at 15°C): 1.1 kPa*h/m²
• Specific Flow Rate (max): 80 BV/h

Storage and Handling

• Storage Temperature Range: -20 - +40 °C
• Storage Time (after delivery, max): 2 years
• Recommended Storage: Above the freezing point of water, under roof, in dry conditions, without direct sunlight.
• Frozen Resin: If resin becomes frozen, allow it to thaw gradually at ambient temperature before handling or use. Do not accelerate thawing.
• Packaging Stability: Limited to 24 months under recommended storage conditions. Check packaging condition regularly if used beyond this period.
• Safety Precautions: Strong oxidants (e.g., nitric acid) can cause violent reactions with ion exchange resins.
• Toxicity: Observe the safety data sheet.
• Disposal: Dispose of in accordance with the European waste nomenclature within the European Community.

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