LEWATIT® MP 62

Summary

Product identification

• Product Name: Lewatit® MP 62
• Common Description: Weakly basic, macroporous anion exchange resin with tertiary amine groups (monofunctional).
• 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 modern counter-current systems).
• 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 Considerations

• High resistance to organic fouling due to macroporous structure.

Resin Properties

• 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
• Total capacity (delivery form) (min.): 1.7 eq/L
• Bulk density for shipment (+/- 5%): 620 g/L
• Density (approx.): 1.02 g/mL
• Water retention (delivery form) (approx. weight %): 50-55%
• Volume change (free base - Cl-) (max. approx.): 45%
• Mechanical stability: Outstanding

Regeneration

• NaOH regeneration concentration (approx. wt. %): 2-6%
• 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

Physical Operation

• Backwash bed expansion per m/h (20°C): 30%
• Specific pressure loss (15°C): 1.1 kPa*h/m²
• Specific flow rate (max.): 40 BV/h
• Slow rinse at regeneration flow rate: 2 BV
• Fast rinse at service flow rate: 2 BV

Storage and Handling

• Storage temperature range: -20 - +40 °C
• Storage time (after delivery) (max.): 2 years
• Storage recommendations: Store above freezing point of water, under roof, in dry conditions, without direct sunlight.
• Frozen resin: Allow to thaw gradually at ambient temperature. Do not handle mechanically while frozen.
• Packaging stability: Limited to 24 months under recommended storage conditions.

Safety

• Strong oxidants (e.g., nitric acid) can cause violent reactions.
• Observe the safety data sheet for additional information.

Disclaimer: 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