LEWATIT® MonoPlus M 500 KR

Summary

Product identification

• Product Name: LEWATIT® MonoPlus M 500 KR
• Description: Strongly basic, premium grade, gel-type anion exchange resin (type I) with beads of uniform size (monodisperse) in highly regenerated and purified form to meet nuclear industry specifications.
• Functional group: Quaternary ammonium (OH⁻)
• Matrix: Styrenic
• Structure: Gel
• Appearance: Light brown, translucent
• Delivery form: OH⁻

Applications

LEWATIT® MonoPlus M 500 KR is particularly suitable for:

• Removal of anions, including radioactive isotopes, from aqueous solutions (including boric acid).
• Decontamination of circuits in nuclear reactor plants.
• Treatment of primary coolant e.g. in pressure water reactors.
• Purification of steam generator blow down irrespective of conditioning with Levoxin (hydrazine), ethanolamine or morpholine.
• Polishing in primary and secondary sections as a mixed bed component with Lewatit® MonoPlus SP 112 KR or Lewatit® MonoPlus S 200 KR.

Specified Data

• Uniformity coefficient: max. 1.1
• Mean bead size (d₅₀): 0.64 (+-0.05) mm
• Total capacity (delivery form): min. 1.1 eq/L

Typical Physical and Chemical Properties

• Bulk density for shipment (+/- 5%): 670 g/L
• Density: approx. 1.07 g/mL
• Water retention (delivery form): approx. 56-62 % weight
• Stability pH range: 0-14
• Storage temperature range: -20 - +40 °C
• Friability: >200 g/bead min. vol % (average 700 g/bead)
• Ionic conversion OH⁻: min. 95 eq. %
• Ionic conversion CO₃²⁻: max. 5 eq. %
• Ionic conversion Cl⁻: max. 0.5 eq. %
• Ionic conversion SO₄²⁻: max. 0.5 eq. %

Operation

• Operating temperature: max. 70 °C
• Operating pH range during exhaustion: 0-12
• Bed depth for single column: min. 800 mm
• Bed depth per component in mixed bed: min. 500 mm
• Backwash bed expansion (per m/h at 20°C): 11 %
• Specific pressure loss (at 15°C): 1 kPa*h/m²
• Max. pressure loss during operation: 250 kPa
• Specific flow rate: max. 100 BV/h

Trace Impurities (max. mg/kg dry resin)

• Na: 20
• Fe: 30
• Cu: 5
• Al: 5
• Co: 5
• Pb: 10
• Hg: 5
• SiO₂: 50
• Total Chloride: 500
• SO₄²⁻ as Sulphur: 600

Storage and Handling

• Storage Temperature: Recommended above freezing point of water, under roof, dry, and out of direct sunlight.
• Frozen Resin: Allow to thaw gradually at ambient temperature before handling or use; do not accelerate thawing.
• Packaging Stability: Limited to 24 months under recommended storage conditions. Use within this timeframe or check packaging condition regularly.
• Safety Precautions: Avoid contact with strong oxidants (e.g., nitric acid) which can cause violent reactions. Observe the safety data sheet for further information on transport, storage, handling, safety, and ecology.

Disposal

• Dispose of ion exchange resins according to the European waste nomenclature within the European Community.

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