LEWATIT® MonoPlus SM 1000 KR

Summary

Product identification

Lewatit® MonoPlus SM 1000 KR is a ready-to-use mixed bed comprising strongly acidic gel-type cation and strongly basic (type I) gel-type anion exchange resins in fully regenerated form. It is a mixture of cation and anion exchange resins in a volume ratio of 1:2. Both components are premium grade and purified to meet nuclear industry specifications.

Applications

• Polishing in primary and secondary sections as a mixed bed component.
• Decontamination of circuits in nuclear reactor plants.
• Treatment of primary coolant (e.g., in pressure water reactors).
• Purification of steam generator blowdown (with Levoxin, ethanolamine, or morpholine).
• Removal of activated cleavage or corrosion products, including mechanical filtration of suspended impurities.
• Polishing in the moderator water purification section of Candu reactor stations (gadolinium and nitrate removal).

Specified Data

• Uniformity coefficient: max. 1.1
• Mean bead size (SAC component): d₅₀ = 0.60 ± 0.05 mm
• Mean bead size (SBA component): d₅₀ = 0.64 ± 0.05 mm
• Total capacity (SAC component, H⁺ form): min. 2.1 eq/L
• Total capacity (SBA component, OH⁻ form): min. 1.2 eq/L

Typical Physical and Chemical Properties

• Bulk density for shipment: 720 g/L (± 5%)
• Water retention (delivery form): approx. 42-63 % by weight
• Volume change (during exhaustion): max. approx. -15 %
• Stability pH range: 0-14
• Storage time (after delivery): max. 1 year
• Storage temperature range: -20 to +40 °C
• Friability: >95 vol. % >200 g/bead
• Ionic conversion (OH⁻, SBA): min. 95 eq. %
• Ionic conversion (CO₃²⁻, SBA): max. 5 eq. %
• Ionic conversion (Cl⁻, SBA): max. 0.2 eq. %
• Ionic conversion (SO₄²⁻, SBA): max. 0.3 eq. %
• Ionic conversion (H⁺, SAC): min. 99.9 eq. %

Operation

• Operating temperature: max. 60 °C
• Operating pH range during exhaustion: 0-14
• Bed depth for single column: min. 800 mm
• Specific pressure loss: 1 kPa*h/m² (at 15 °C)
• Max. pressure loss during operation: 200 kPa
• Specific flow rate: max. 100 BV/h

Trace Impurities (max. mg/kg dry resin)

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

Additional Information

• Safety precautions: Avoid contact with strong oxidants. Observe the safety data sheet.
• Disposal: Dispose according to European waste nomenclature.
• Storage: Store above freezing point of water, dry, out of direct sunlight. If frozen, thaw gradually. Packaging stability is limited to 24 months.

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