LEWATIT® MonoPlus MP 500

Summary

Product Identification

Lewatit® MonoPlus MP 500 is a strongly basic, macroporous anion exchange resin (type I) with uniform sized beads (monodisperse) based on a styrene-divinylbenzene copolymer. It is designed for all demineralization applications.

Common Description:

• Functional group: Quaternary ammonium, Type 1
• Matrix: Styrenic
• Structure: Macroporous
• Appearance: Beige, opaque
• Delivery form: Cl⁻

Applications

Lewatit® MonoPlus MP 500 is especially applicable for:

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

Special Resin Bed Features

• High flow rates during regeneration and loading
• Good utilization of the total capacity
• Low rinse water requirement
• Homogenous throughput of regenerants, water, and solutions, resulting in an homogenous operating zone
• Virtually linear pressure drop gradient across the entire bed depth, allowing operation with higher bed depths
• Good separation of components in mixed bed applications

Specified Data

• Uniformity coefficient: max. 1.1
• Mean bead size (d₅₀): 0.62 (±0.05) mm
• Total capacity (delivery form): min. 1.1 eq/L

Typical Physical and Chemical Properties

• Bulk density for shipment (±5%): 640 g/L
• Density: approx. 1.06 g/mL
• Water retention (delivery form): approx. 60-65 % by weight
• Volume change (Cl⁻ - OH⁻): max. approx. +22 %
• Stability pH range: 0-14
• Storage time (after delivery): max. 2 years
• Storage temperature range: -20 to +40 °C

Operation

• 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 at 20°C): 18 %
• Specific pressure loss (at 15°C): 0.8 kPa*h/m²
• Max. pressure loss during operation: 300 kPa
• Specific flow rate: max. 100 BV/h

Regeneration

• NaOH regeneration concentration: approx. 2-6 wt. %
• NaOH regeneration quantity (co-current): min. 80 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

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: Dispose of ion exchange resins according to the European waste nomenclature.
• Storage: Store above freezing point, under roof, dry, and out of direct sunlight. If frozen, allow to thaw gradually at ambient temperature before handling or use.
• Packaging: Packaging stability is limited to 24 months under recommended storage conditions. Use within this timeframe or check packaging condition regularly.

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