LEWATIT® MonoPlus M 500

Summary

Product identification

• Product name: Lewatit® MonoPlus M 500
• Type: Strongly basic, gelular anion exchange resin
• Bead type: Uniform size (monodisperse)
• Matrix: Styrene-divinylbenzene copolymer
• Functional group: Quaternary ammonium, Type 1
• Common description: Cl⁻
• Delivery form: Gel
• Appearance: Yellow, translucent

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 S 108 H in a Lewatit® Multistep System

Key Features

• High exchange flow rates during regeneration and loading
• Good utilization of total capacity
• Low demand for rinse water
• Homogenous throughput of regenerants, water, and solutions, resulting in a homogenous working zone
• Nearly linear pressure drop gradient, allowing for higher bed depth operation

Specified Data

• Uniformity coefficient: max. 1.1
• Mean bead size (d₅₀): 0.62 (±0.05) mm
• Total capacity (delivery form): min. 1.3 eq/L

Typical Physical and Chemical Properties

• Bulk density (for shipment): 690 g/L (±5%)
• Density: approx. 1.08 g/mL
• Water retention (delivery form): approx. 48 - 55 % (by weight)
• Volume change (Cl⁻ to OH⁻): max. approx. 24 %
• Stability pH range: 0 - 14
• Storage time (after delivery): max. 2 years
• Storage temperature range: -20 - +40 °C

Operation

• Operating temperature: max. 70 °C
• Operating pH range (during exhaustion): 0 - 12
• Bed depth (single column): min. 800 mm
• Backwash bed expansion (per m/h at 20°C): 11 %
• Specific pressure loss (at 15°C): 1 kPa*h/m²
• Max. pressure loss (during operation): 200 kPa
• Specific flow rate: max. 60 BV/h

Regeneration

• Regeneration chemical: NaOH
• 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

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