LEWATIT® MonoPlus M 500 OH

Summary

Product identification

• Product Name: Lewatit® MonoPlus MP 500 OH
• Description: Strongly basic, macroporous anion exchange resin (Type I) with uniform size beads (monodisperse) based on a styrene-divinylbenzene copolymer.
• Edition: 2020-11-26

Applications

• Polishing using the Lewatit® Multistep System or a conventional mixed bed arrangement in combination with Lewatit® MonoPlus SP 112 H or Lewatit® MonoPlus S 108 H.
• Condensate polishing in combination with Lewatit® MonoPlus SP 112 H or Lewatit® MonoPlus S 200 KR.
• Demineralization of water for industrial steam generation in co-current or counter-current systems (e.g., Lewatit® WS System, Lewatit® Liftbed System, Lewatit® Rinsebed System).

Resin Bed Features

• High flow rates during regeneration and loading.
• Good utilization of total capacity.
• Low rinse water requirement.
• Homogeneous throughput of regenerants, water, and solutions.
• Virtually linear pressure drop gradient.
• Good separation of components in mixed bed applications.

Specified Data

• Common Description: OH⁻
• Functional Group: Quaternary ammonium Type 1
• Matrix: Styrenic
• Structure: Macroporous
• Appearance: Beige, opaque
• Uniformity coefficient: max. 1.1
• Mean bead size (d₅₀): 0.65 (±0.05) mm
• Total capacity (delivery form): min. 0.9 eq/L

Typical Physical and Chemical Properties

• Bulk density for shipment (±5%): 620 g/L
• Density: approx. 1.06 g/mL
• Water retention (delivery form): approx. 70-77 % by weight
• Volume change (OH⁻ ➔ Cl⁻): max. approx. -22 %
• Stability pH range: 0-14
• Storage time (after delivery): max. 1 year
• Storage temperature range: -20 to +40 °C
• Ionic conversion OH⁻: min. 80 % eq.

Operating Parameters

• Operating temperature: max. 70 °C
• Operating pH range during exhaustion: 0-12
• 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): 18 %
• Specific pressure loss (15°C): 0.8 kPa*h/m²
• Max. pressure loss during operation: 300 kPa
• Specific flow rate: max. 100 BV/h

Regeneration Parameters

• NaOH regeneration concentration: approx. 2-6 wt. %
• NaOH regeneration quantity (co-current): min. 100 g/L resin
• NaOH regeneration quantity (counter-current): min. 50 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

Safety and Storage

• Contact with strong oxidants (e.g., nitric acid) can cause violent reactions.
• Observe the Safety Data Sheet for detailed information on transport, storage, handling, safety, and ecology.
• Dispose of ion exchange resins according to European waste nomenclature.
• Recommended storage: above freezing point, dry, under roof, out of direct sunlight.
• If frozen, thaw gradually at ambient temperature; do not mechanically handle until completely thawed.
• Packaging stability is limited to 24 months under recommended storage conditions; check packaging condition regularly if used beyond this period.

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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