LEWATIT® S 100 KR / H CL-FREE

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, with an extremely low content of desorbable chloride ions.

Applications

This resin 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.
• Treatment of primary coolant 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.

General Description

• Ionic form as shipped: H⁺
• Functional group: sulfonic acid
• Matrix: crosslinked polystyrene
• Structure: gel type beads
• Appearance: brown, translucent

Physical and Chemical Properties

• 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. mg / kg dry resin, unless otherwise noted)

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

Recommended Operating Conditions

• Operating temperature: max. 120 °C
• Operating pH-range: 0 - 14
• Bed depth (single bed): 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. %

Note: The recommended operating conditions are based on pilot plant tests and industrial applications. Additional data for calculating resin volumes are available in Technical Information Sheets.

Storage

Store ion exchange resins at temperatures above the freezing point of water, under roof, in dry conditions, and out of direct sunlight. If the resin freezes, allow it to thaw gradually at ambient temperature without mechanical handling before use. Do not accelerate the thawing process.

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Disclaimer: This summary is extracted from a PDF datasheet. The extraction may have missed figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror