LEWATIT® S 100 KR/H CL-FREI

Summary

Product identification

Lewatit® S 100 KR-H Cl-frei is a strongly acidic, gel-type cation exchange resin. It is supplied in a highly regenerated form (min. 99 % H⁺) and purified to meet nuclear industry specifications, characterized by an extremely low content of desorbable chloride ions.

This resin is noted for its outstanding mechanical, osmotic, and chemical stability, making it suitable for radioactive water circuits and guaranteeing water quality compliant with nuclear power industry requirements.

Applications

Lewatit® S 100 KR-H Cl-frei is particularly suitable for:

• Removal of cations, including radioactive isotopes, from aqueous solutions (pH control through adsorption of excess Li⁺).
• Decontamination of circuits in nuclear reactor plants.
• Removal of radioactive cations such as caesium 137 (fuel cooling).
• Treatment of primary coolant, e.g., in pressure water reactors.
• Removal of activated cleavage or corrosion products, including mechanical filtration of suspended impurities.
• Polishing in primary and secondary sections as a mixed bed component with Lewatit® MonoPlus M 500 KR or Lewatit® MonoPlus M 800 KR.

Important: Rinse carefully with demineralized water prior to service or mixing with Lewatit® MonoPlus M 500 KR or Lewatit® MonoPlus M 800 KR.

Physical and Chemical Properties

• Ionic form as shipped: H⁺
• Functional group: sulfonic acid
• Matrix: crosslinked polystyrene
• Structure: gel type beads
• Appearance: brown, translucent
• Uniformity Coefficient: max. 1.6
• Bead size: > 90 % between 0.5 - 1.2 mm
• Effective size: 0.5 ± 0.05 mm
• Bulk density: 760 ± 5 % g/l
• Density: approx. 1.22 g/ml
• Water retention: 50 - 55 wt. %
• Total capacity: min. 1.8 eq/l
• Volume change (H⁺ --> Na⁺): max. -8 vol. %
• Stability (pH-range): 0 - 14
• Storability: max. 12 months
• Storability temperature range: -20 - 40 °C
• Ionic conversion (H⁺): min. 99 mol %

Trace Elements Analysis (max. content)

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

Recommended Operating Conditions

• Operating temperature: max. 120 °C
• Operating pH-range: 0 - 14
• Bed depth: min. 800 mm
• Specific pressure drop (15 °C): approx. 1.1 kPa*h/m²
• Pressure drop: max. 150 kPa
• Linear velocity (operation): max. 100 m/h
• Linear velocity (backwash, 20 °C): approx. 8 - 10 m/h
• Bed expansion (20 °C, per m/h): approx. 3 vol. %

Mixed bed operation

• Bed depth: min. 600 mm
• Regenerant type: HCl/H₂SO₄
• Regenerant level: approx. 80 - 150 g/l
• Regenerant concentration: approx. 2 - 10 wt. %

Additional Information & Regulations

Safety precautions

Strong oxidants, e.g., nitric acid, can cause violent reactions if they come into contact with ion exchange resins. Observe the safety data sheet.

Disposal

In the European Community, ion exchange resins must be disposed of according to the European waste nomenclature.

Storage

It is recommended to store ion exchange resins at temperatures above the freezing point of water, under roof, in dry conditions, and without exposure to direct sunlight. If resin becomes frozen, it should thaw gradually at ambient temperature before handling or use. Do not attempt to accelerate the thawing process.

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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