LEWATIT® MonoPlus S 100

Summary

Product Identification

Lewatit® MonoPlus S 100 is a strongly acidic, gelular cation exchange resin with uniform-sized (monodisperse) beads based on a styrene-divinylbenzene copolymer.

General Description:

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

Physical and Chemical Properties

• Uniformity coefficient: max. 1.1
• Mean bead size: 0.6 mm (± 0.05)
• Share of beads in the range Mean bead size ± 0.05 mm: > 90 vol. %
• Bulk density: 830 g/l (± 5 %)
• Density: approx. 1.28 g/ml
• Water retention: 42 - 48 wt. %
• Total capacity: min. 2.0 eq/l
• Volume change (Na⁺ → H⁺): max. 8 vol. %
• Stability at pH-range: 0 - 14
• Storability of the product: max. 2 years
• Storability temperature range: -20 to 40 °C

Recommended Operating Conditions

• Operating temperature: max. 120 °C
• Operating pH-range: 0 - 14
• Bed depth: min. 800 mm
• Specific pressure loss (15 °C): approx. 1.0 kPa·h/m²
• Pressure loss: max. 200 kPa
• Linear velocity (exhaustion): max. 60 m/h (100 m/h for polishing)
• Linear velocity (backwash, 20 °C): approx. 15 m/h
• Bed expansion (20 °C, per m/h): approx. 4 vol. %
• Freeboard (backwash, external / intern): 60 - 80 vol. %

Regenerant Details

Counter-current regeneration:

• Level:
  • HCl: approx. 50 g/l
  • H₂SO₄: approx. 80 g/l
  • NaCl: approx. 90 g/l
• Concentration:
  • HCl: 4 - 6 wt. %
  • H₂SO₄: 1.5 / 3** wt. %
  • NaCl: 8 - 10 wt. %
• Linear velocity (regeneration):
  • HCl: approx. 5 m/h
  • H₂SO₄: 10 - 20 m/h
  • NaCl: approx. 5 m/h
• Linear velocity (rinsing):
  • HCl: approx. 5 m/h
  • H₂SO₄: approx. 5 m/h
  • NaCl: approx. 5 m/h
• Rinse water requirement (slow / fast): approx. 2 BV

Co-current regeneration:

• Level:
  • HCl: approx. 100 g/l
  • H₂SO₄: approx. 150 g/l
  • NaCl: approx. 200 g/l
• Concentration:
  • HCl: 6 - 10 wt. %
  • H₂SO₄: 1.5 / 3** wt. %
  • NaCl: 8 - 10 wt. %
• Linear velocity (regeneration):
  • HCl: approx. 5 m/h
  • H₂SO₄: 10 - 20 m/h
  • NaCl: approx. 5 m/h
• Linear velocity (rinsing):
  • HCl: approx. 5 m/h
  • H₂SO₄: approx. 5 m/h
  • NaCl: approx. 5 m/h
• Rinse water requirement (slow / fast): approx. 6 BV

Mixed bed operation

• Bed depth:
  • HCl: min. 500 mm
  • H₂SO₄: min. 500 mm
• Regenerant level:
  • HCl: approx. 100 g/l
  • H₂SO₄: approx. 150 g/l
• Regenerant concentration:
  • HCl: 4 - 6 wt. %
  • H₂SO₄: 2 - 8 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: Ion exchange resins must be disposed of according to the European waste nomenclature.
• Storage: Recommended to store at temperatures above the freezing point of water, under roof, in dry conditions without direct sunlight. If frozen, allow to thaw gradually at ambient temperature before handling or use.

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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