LEWATIT® MonoPlus MP 68

Summary

Product Identification

• Product Name: LEWATIT® MonoPlus MP 68
• Product Type: Weakly basic, macroporous anion exchange resin
• Matrix: Styrene-divinylbenzene copolymer
• Bead Type: Uniform size (monodisperse)
• Functional Group: Tertiary amine / quaternary ammonium
• Delivery Form: Free base/Cl-
• Appearance: Beige, opaque
• Common Description: Macroporous
• Structure: Macroporous

Operating Limits

• Stability pH Range: 0-14
• Storage Temperature Range: -20 to +40 °C
• Operating Temperature (max): 70 °C
• Operating pH Range During Exhaustion: 0-8
• Max. Pressure Loss During Operation: 300 kPa

Feed Water / Application

• Applicable For:
  • 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 a high concentration of humic acids and other organic substances to protect strong basic anion exchangers from fouling

Resin Properties

• Uniformity Coefficient (max): 1.1
• Mean Bead Size (d50): 0.55 ±0.05 mm
• Total Capacity (delivery form) (min): 1.3 eq/L
• Bulk Density for Shipment (±5%): 620 g/L
• Density (approx.): 1.04 g/mL
• Water Retention (delivery form) (approx. weight %): 54-60 %
• Volume Change (free base / Cl- - Cl-) (max. approx. %): 24 %

Operational Parameters

• Bed Depth for Single Column (min): 800 mm
• Backwash Bed Expansion (per m/h at 20°C): 21 %
• Specific Pressure Loss (at 15°C): 1 kPa*h/m²
• Specific Flow Rate (max): 40 BV/h

Regeneration

• Regeneration Concentration (NaOH): approx. 2-6 wt. %
• Regeneration Quantity (NaOH) Co-current (min): 80 g/L resin
• Regeneration Quantity (NaOH) 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

Mechanical / Hydraulic

• See the official PDF for exact tabulated values. (The table contains specific pressure loss and regeneration parameters that are best viewed directly.)

Storage and Handling

• Storage Time (after delivery) (max): 2 years
• Storage Conditions: Recommended to store above freezing point of water, under roof, in dry conditions without direct sunlight.
• Frozen Resin: If frozen, thaw gradually at ambient temperature. Do not mechanically handle while frozen. Ensure completely thawed before handling or use. Do not accelerate thawing.
• Safety: Observe safety data sheet. Avoid contact with strong oxidants like nitric acid, which can cause violent reactions.
• Disposal: Dispose 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