LEWATIT® MP 62

Summary

Product identification

• Product Name: Lewatit® MP 62
• Common Description: Weakly basic, macroporous anion exchange resin with tertiary amine groups (monofunctional), of particularly low basicity, and of standard bead size distribution.
• Functional group: Tertiary amine
• Matrix: Styrenic
• Structure: Macroporous
• Appearance: Beige, opaque
• Delivery form: Free base

Applications

• Demineralization of water for industrial steam generation (co-current or counter-current systems like Lewatit® WS System, Lewatit® Liftbed System, or Lewatit® Rinsebed System).
• Removal of organic matter, especially from surface water.
• Deacidification of organic process streams.

Operating limits

• Stability pH range: 0-14
• Operating temperature: max. 130 °C
• Operating pH range during exhaustion: 0-8
• Bed depth for single column: min. 800 mm
• Max. pressure loss during operation: 250 kPa

Feed water

• Resistance to organic fouling: High (due to macroporous structure for effective adsorption and desorption of naturally occurring organic substances).

Product water

• Low silica leakage: Achieved when combined with a strongly dissociated anion exchange resin.

Mechanical / hydraulic

• Uniformity coefficient: max. 1.8
• Range of size for >90 vol% of all beads: 0.315 - 1.25 mm
• Effective size (d₁₀): 0.41 - 0.53 mm
• Bulk density for shipment (+/- 5%): 620 g/L
• Density: approx. 1.02 g/mL
• Water retention (delivery form): approx. 50-55 weight %
• Volume change (free base - Cl⁻): max. approx. 45 %
• Backwash bed expansion (20°C): 30 % per m/h
• Specific pressure loss (15°C): 1.1 kPa*h/m²
• Specific flow rate: max. 40 BV/h

Electrical

• Not specified in the extract.

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

Storage and Handling

• Storage temperature range: -20 - +40 °C
• Storage time (after delivery): max. 2 years
• Recommended storage: Above freezing point of water, under roof, dry, without direct sunlight.
• Frozen resin: Allow to thaw gradually at ambient temperature before handling or use. Do not accelerate thawing.
• Packaging stability: Limited to 24 months under recommended storage conditions; check packaging condition regularly if stored longer.
• Safety: Observe safety data sheet. Avoid contact with strong oxidants like nitric acid.

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