LEWATIT® S 2328

Summary

Product identification

Lewatit® S 2328 is a food grade, macroporous, strongly acidic cation exchange resin based on a styrene-divinylbenzene copolymer. It is bead-shaped and has a special bead size distribution.

• Common Description: H⁺ form, Sulfonic acid functional group, Styrenic matrix, Macroporous structure
• Delivery form: Beige-gray, opaque beads

Operating limits

• Stability pH range: 0-14
• Stability temperature range: 1-120 °C
• Operating temperature (max.): 120 °C
• Operating pH range during exhaustion: 0-14

Feed water

• Bed depth for single column (min.): 800 mm
• Freeboard during backwash (min.): 80-100 vol. %

Product water

No specific parameters are listed in the extract.

Electrical

No electrical parameters are listed in the extract.

Mechanical / hydraulic

• Uniformity coefficient (max.): 1.7
• Range of size for >90 vol% of all beads: 0.315-1.25 mm
• Effective size (d₁₀): 0.48-0.58 mm
• Total capacity (delivery form) (min.): 1.0 eq/L
• Bulk density for shipment (+/- 5%): 730 g/L
• Density (approx.): 1.1 g/mL
• Water retention (delivery form) (approx.): 67-73 % by weight
• Volume change (Na⁺ - H⁺) (max. approx.): 12 %
• Backwash bed expansion per m/h (20°C): 7 %
• Specific pressure loss (15°C): 1.1 kPa*h/m²
• Max. pressure loss during operation: 250 kPa
• Specific flow rate (max.): 2 BV/h

Regeneration

HCl Regeneration

• Concentration (approx.): 4-6 wt. %
• Quantity co-current (min.): 100 g/L resin
• Quantity counter-current (min.): 55-65 g/L resin

H₂SO₄ Regeneration

• Concentration (approx.): 1.5-3 wt. %
• Quantity co-current (min.): 150 g/L resin
• Quantity counter-current (min.): 90 g/L resin

Rinse Steps

• Regeneration contact time (min.): 20 minutes
• Slow rinse at regeneration flow rate: 2 BV
• Fast rinse at service flow rate: 4 BV

Additional Information

• Safety precautions: Strong oxidants can cause violent reactions. Observe Safety Data Sheet.
• Storage: Recommended to store above freezing point, under roof, dry, out of direct sunlight. If frozen, thaw gradually at ambient temperature.
• Storage time: Packaging stability limited to 24 months. Use within this timeframe or check packaging condition regularly.
• Storage temperature range: -20 - +40 °C

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