LEWATIT® A 8075 KR

Summary

Product identification

Lewatit® A 8075 KR is a weakly basic, gel type anion exchange resin based on an acrylic copolymer with a special bead size distribution. It has a porous polyacrylate structure, offering high capacities and kinetic properties.

Applications

• Treatment of radioactive waste after full system decontamination
• Clean-up of radioactive waste
• Applications in nuclear power stations

Physical and Chemical Properties

• Ionic form as shipped: Free base
• Functional group: Polyamine
• Matrix: Crosslinked polyacrylate
• Structure: Gel
• Appearance: Yellow-white, opaque
• Uniformity Coefficient: max. 1.8
• Effective size: 0.50 (+/- 0.05) mm
• Bulk density: 730 (+/- 5 %) g/l
• Density: approx. 1.13 g/ml
• Water retention: 44 - 51 wt. %
• Total capacity: min. 3.5 eq/l
• Volume change (free base --> Cl⁻): max. 16 vol. %
• Stability (pH-range): 0 - 14
• Storability (product): max. 2 years
• Storability (temperature range): -20 to +30 °C

Recommended Operating Conditions

• Operating temperature: max. 70 °C
• Operating pH-range: 0 - 9
• Bed depth: min. 800 mm
• Specific pressure drop (15 °C): approx. 1.1 kPa*h/m²
• Pressure loss: max. 150 kPa
• Linear velocity (operation): 5 - 40 m/h
• Linear velocity (backwash, 20 °C): approx. 9 m/h
• Bed expansion (20 °C, per m/h): approx. 15 vol. %
• Freeboard (backwash, external / intern): 80 - 100 vol. %

Regeneration

• Regenerant: NaOH
• Regeneration level (counter current): approx. 64 - 128 g/l
• Concentration (WS-System): approx. 3 - 5 wt. %
• Linear velocity (regeneration): approx. 5 m/h
• Linear velocity (rinsing): approx. 5 m/h
• Rinse water requirement (slow / fast): approx. 1 - 3 / 3 - 8 BV

Additional Information

• Safety precautions: Avoid contact with strong oxidants like nitric acid. Refer to the safety data sheet for detailed information on handling, storage, transport, safety, and ecology.
• Disposal: Dispose of in accordance with the European waste nomenclature.
• Storage: Store above freezing point, dry, and out of direct sunlight. If frozen, allow to thaw gradually at ambient temperature before handling or use.

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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