LEWATIT® UltraPure 1211 MD

Summary

Product identification

• Product Name: LEWATIT® UltraPure 1211 MD
• Product Type: Gel type, strongly acidic cation exchange resin (SAC)
• Matrix: Crosslinked polystyrene
• Functional Group: Sulfonic acid
• Structure: Gel type beads
• Appearance: Black - brown
• Ionic form as shipped: Na⁺

Operating limits

• pH range: 0 - 14
• Maximum operating temperature: 120 °C
• Storability: 2 years
• Storage temperature range: -20 - +40 °C

Feed water

• Application: Demineralization of water in the production of ultra pure water.
• Leaching of organics: Less than 50 ppb.

Product water

• Resistivity: min. 4.0 MOhm*cm (as a single component, ca. 80 BV)
• Delta TOC: max. 50 ppb

Electrical

• Not specified.

Mechanical / hydraulic

• Uniformity Coefficient: max. 1.1
• Mean bead size: 0.62 (+/-0.05) mm
• Total capacity: min. 2.2 eq/l
• Bulk density: approx. 840 g/l (+/- 5 %)
• Density: approx. 1.30 g/ml
• Water retention: 41 - 46 wt. %
• Volume change (Na⁺ --> H⁺): max. 10 vol. %
• Bed depth: min. 800 mm
• Specific pressure drop (15 °C): approx. 1.0 kPa*h/m²
• Pressure drop: max. 200 kPa
• Linear velocity (operation): max. 60 m/h
• Linear velocity (backwash, 20 °C): approx. 15 m/h
• Freeboard (backwash, extern / intern): min. 60 vol. %
• Bed expansion (20 °C, per m/h): approx. 4 vol. %

Regeneration (Counter-current)

• Regenerant (HCl):
  • Quantity: approx. 50 g/l
  • Concentration: 4 - 6 wt. %
  • Linear velocity: approx. 5 m/h
  • Rinse water requirement (slow/fast): approx. 2.5 BV
• Regenerant (H₂SO₄):
  • Quantity: approx. 80 g/l
  • Concentration: 1.5 - 4 wt. %**
  • Linear velocity: approx. 10 - 20 m/h
  • Rinse water requirement (slow/fast): approx. 5 BV

Regeneration (Co-current)

• Regenerant (HCl):
  • Quantity: approx. 100 g/l
  • Concentration: approx. 6 - 10 wt. %
  • Linear velocity: approx. 5 m/h
  • Rinse water requirement (slow/fast): approx. 2.5 BV
• Regenerant (H₂SO₄):
  • Quantity: approx. 150 g/l
  • Concentration: approx. 1.5 - 3 wt. %**
  • Linear velocity: approx. 10 - 20 m/h
  • Rinse water requirement (slow/fast): approx. 5 BV
• Linear velocity (rinsing): approx. 5 m/h (for HCl and H₂SO₄)

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