LEWATIT® MonoPlus S 300 KR

Summary

Product identification

• Product Name: LEWATIT® MonoPlus S 300 KR
• Product Type: Strongly acidic, highly cross-linked gel-type cation exchange resin
• Form: Specific grain size, monodisperse particle size distribution
• Regeneration: >99.5 % (H⁺ form)

General Description

LEWATIT® MonoPlus S 300 KR is a strongly acidic cation exchange resin with excellent osmotic and physical stability, and high resistance to oxidation. Its monodisperse particle size distribution results in lower pressure losses compared to standard resins.

Key Features and Applications

• Optimized for polishing condensates.
• High flow rate capabilities for desalination.
• Extremely low content of elutable chloride ions, meeting nuclear industry requirements.
• Suitable for mixed beds with Lewatit® Mono Plus M 800 KR or Lewatit® Mono Plus M 880 KR, even at high flow rates, with very low residual salt content.
• Low fines content (max. 0.1 % of particles < 0.315 mm).

Specific Applications:

• Removal of cations, including radioactive isotopes (e.g., pH control via ⁷Li adsorption).
• Decontamination of circuits in nuclear installations.
• Removal of radioactive cations (high selectivity for ¹³⁷Cs).
• Use in the primary coolant circuit of pressure or boiling water reactors.
• Cleaning of blowdown from steam generation units.
• Removal of radioactive fission and corrosion products, including mechanical filtration of suspended solids.
• Fine cleaning in primary and secondary circuits as a mixed bed component.

Specified Data

Physical and Chemical Properties

Trace Elements Analysis (max. mg / kg dry resin)

• Na: 20
• Ca: 10
• K: 10
• Mg: 10
• Fe: 25
• Cu: 10
• Al: 10
• Co: 10
• Pb: 10
• Hg: < 1
• Heavy metals (as Pb): 10
• SiO₂: 50
• Chloride: 10 mg / l

Recommended Operating Conditions

Operation

• Operating temperature: max. 120 °C
• Operating pH-range: 0 - 14
• Bed depth: min. 800 mm
• Specific pressure drop (15 °C): approx. 1.5 kPa*h/m²
• Pressure drop: max. 200 kPa
• Linear velocity (operation): max. 5 - 120 m/h

Operation, Mixed Bed

• Bed depth: min. 600 mm

Regeneration, Mixed Bed

• Regenerant type: HCl, H₂SO₄
• Regeneration quantity:
  • HCl: approx. 50 - 100 g/l
  • H₂SO₄: approx. 80 - 200 g/l
• Regeneration concentration:
  • HCl: approx. 4 - 10 wt. %
  • H₂SO₄: approx. 1.5 - 5 wt. %
• Regeneration/displacement rinse: 1 - 10 m/h
• Rinse water requirement (slow / fast): approx. 2 / 2 BV

Storage and Handling

• Store above freezing point of water, dry, out of direct sunlight.
• If frozen, thaw gradually at ambient temperature; do not mechanically handle while frozen.
• Observe Safety Data Sheet for handling, safety, and ecology information.
• Avoid contact with strong oxidants like nitric acid.

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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