LEWATIT® MonoPlus SP 112

Summary

Product identification

Lewatit® MonoPlus SP 112 is a strongly acidic, macroporous cation exchange resin with uniform bead size (monodisperse) based on a styrene-divinylbenzene copolymer.

Common Description:

• Functional group: Sulfonic acid
• Matrix: Styrenic
• Structure: Macroporous
• Appearance: Beige, grey

Delivery form: Na⁺

Operating limits

• Stability pH range: 0-14
• Operating temperature: max. 140 °C
• Operating pH range during exhaustion: 2-14
• Max. pressure loss during operation: 300 kPa
• Storage temperature range: -20 - +40 °C
• Storage time (after delivery): max. 2 years

Feed water

• Specific flow rate: max. 100 BV/h

Product water

• Bed depth for single column: min. 800 mm
• Bed depth per component in mixed bed: min. 500 mm
• Backwash bed expansion per m/h (20°C): 4.5 %

Specified Data

• Uniformity coefficient: max. 1.1
• Mean bead size (d₅₀): 0.65 (±0.05) mm
• Total capacity (delivery form): min. 1.7 eq/L

Typical Physical and Chemical Properties

• Bulk density for shipment (±5%): 750 g/L
• Density: approx. 1.24 g/mL
• Water retention (delivery form): approx. 51-56 % weight
• Volume change (Na⁺ - H⁺): max. approx. 8 %
• Specific pressure loss (15°C): 0.8 kPa*h/m²

Regeneration

• HCl regeneration concentration: approx. 4-6 wt. %
• HCl regeneration quantity co-current: min. 100 g/L resin
• HCl regeneration quantity counter-current: min. 55 g/L resin
• H₂SO₄ regeneration concentration: approx. 1.5-8 wt. %
• H₂SO₄ regeneration quantity co-current: min. 120 g/L resin
• H₂SO₄ regeneration quantity counter-current: min. 80 g/L resin
• Regeneration contact time: min. 20 minutes
• Slow rinse at regeneration flow rate: min. 2 BV
• Fast rinse at service flow rate: min. 2 BV

Applications

• Demineralization of water for industrial steam generation (e.g., LEWATIT® WS System, LEWATIT® Liftbed System, LEWATIT® Rinsebed System)
• Polishing in combination with Lewatit® MonoPlus MP 800 (e.g., LEWATIT® Multistep System)
• Condensate softening
• Condensate polishing in combination with Lewatit® MonoPlus MP 800
• Removal of cationic species in process water streams (e.g., metals, plastics)

Mechanical / hydraulic

• Specific pressure loss (15°C): 0.8 kPa*h/m²

Additional Information & Regulations

• Safety precautions: Strong oxidants, e.g., nitric acid, can cause violent reactions with ion exchange resins. Observe the safety data sheet.
• Disposal: Ion exchange resins must be disposed of according to the European waste nomenclature.
• Storage: Store under roof in dry conditions, protected from direct sunlight, and above the freezing point of water. If frozen, thaw gradually at ambient temperature.
• Packaging: Packaging stability is limited to 24 months under recommended storage conditions.

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