LEWATIT® MonoPlus M 500

Summary

Product identification

• Product Name: Lewatit® MonoPlus M 500
• Type: Strongly basic, gelular anion exchange resin
• Bead Size: Uniform (monodisperse)
• Matrix: Styrene-divinylbenzene copolymer
• Functional Group: Quaternary ammonium, Type 1
• Common Description: Cl⁻
• Delivery Form: Yellow, translucent beads

Operating limits

• Operating Temperature: max. 70 °C
• Operating pH Range during exhaustion: 0-12
• Stability pH range: 0-14
• Max. pressure loss during operation: 200 kPa
• Storage temperature range: -20 - +40 °C
• Storage time (after delivery): max. 2 years

Feed water

Not specified in the extract.

Product water

Not specified in the extract.

Electrical

Not specified in the extract.

Mechanical / hydraulic

• Bulk density for shipment (+/- 5%): 690 g/L
• Density: approx. 1.08 g/mL
• Water retention (delivery form): approx. 48 - 55 % by weight
• Volume change (Cl⁻ - OH⁻): max. approx. 24 %
• Bed depth for single column: min. 800 mm
• Backwash bed expansion (at 20°C): 11 % per m/h
• Specific pressure loss (at 15°C): 1 kPa*h/m²
• Specific flow rate: max. 60 BV/h

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

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

Applications

• Demineralization of water for industrial steam generation (e.g., Lewatit® WS System, Lewatit® Liftbed System, Lewatit® Rinsebed System).
• Polishing in a Lewatit® Multistep System in combination with Lewatit® MonoPlus S 108 H.

Special 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, leading to a homogenous working zone.
• Nearly linear pressure drop gradient across the bed depth, allowing for operation with higher bed depth.

Safety and Handling

• Avoid contact with strong oxidants (e.g., nitric acid).
• Observe Safety Data Sheet for detailed information on product description, transport, storage, handling, safety, and ecology.
• Store in dry conditions, protected from direct sunlight, above freezing point.
• If frozen, allow to thaw gradually at ambient temperature before handling or use.
• Packaging stability is limited to 24 months under recommended storage conditions; check packaging condition regularly if used beyond this timeframe.

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