LEWATIT® MonoPlus MP 64

Summary

Product identification

• Product Name: Lewatit® MonoPlus MP 64
• Type: Weakly basic, macroporous anion exchange resin
• Base Material: Styrene-divinylbenzene copolymer
• Bead Type: Uniform size (monodisperse)

Applications

• Demineralization of water for industrial steam generation (in combination with strong basic ion exchangers like Lewatit® MonoPlus M 500, especially recommended for Lewatit WS System).
• Treatment of electroplating rinse waters.
• Demineralization of water with high concentrations of humic acids and other organic substances to protect strong basic anion exchangers from fouling.

Key Features

• High exchange flow rates during regeneration and loading.
• Excellent 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 across the entire bed depth, allowing for operation with higher bed depth.
• Chemically and osmotically highly stable beads.
• Optimized kinetics for increased operating capacity compared to heterodisperse resins.

Specified Data

• Uniformity Coefficient: max. 1.1
• Mean Bead Size (d₅₀): 0.59 ± 0.05 mm
• Total Capacity (delivery form): min. 1.3 eq/L

Typical Physical and Chemical Properties

• Bulk Density (for shipment): 620 ± 5% g/L
• Density: approx. 1.04 g/mL
• Water Retention (delivery form): approx. 61-66 % by weight
• Volume Change (free base / Cl⁻ - Cl⁻): max. approx. 24 %
• Stability pH Range: 0-14
• Storage Time (after delivery): max. 2 years
• Storage Temperature Range: -20 to +40 °C

Operation

• Maximum Operating Temperature: 70 °C
• Operating pH Range during Exhaustion: 0-8
• Bed Depth (single column): min. 800 mm
• Backwash Bed Expansion: 21 % per m/h (at 20°C)
• Specific Pressure Loss: 1 kPa*h/m² (at 15°C)
• Maximum Pressure Loss during Operation: 300 kPa
• Specific Flow Rate: max. 40 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. 30 minutes
• Slow Rinse (at regeneration flow rate): min. 2 BV
• Fast Rinse (at service flow rate): min. 4 BV

Safety, Storage, and Disposal

• Safety Precautions: Strong oxidants like nitric acid can cause violent reactions. Observe the safety data sheet.
• Storage: Recommended to store above freezing point, indoors, dry, and out of direct sunlight. Frozen resin should thaw gradually at ambient temperature before handling or use.
• Packaging Stability: Limited to 24 months under recommended storage conditions. Use within this timeframe or check packaging condition regularly.
• Disposal: Dispose of according to European waste nomenclature within the European Community.

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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