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

Operating limits

• Stability pH range: 0-14
• Operating temperature: max. 130 °C
• Operating pH range during exhaustion: 0-8
• Max. pressure loss during operation: 250 kPa

Feed water

• Suitable for: Demineralization of water for industrial steam generation, removal of organic matter (especially from surface water), deacidification of organic process streams.
• High resistance to organic fouling due to macroporous structure.

Product water

• Particularly low basicity.
• Outstanding mechanical stability.
• Effective adsorption and desorption of naturally occurring organic substances.
• Can achieve low silica leakage when combined with a strongly dissociated anion exchange resin.

Electrical

• Not applicable.

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 % by weight
• Volume change (free base - Cl⁻): max. approx. 45 %
• Bed depth for single column: min. 800 mm
• Backwash bed expansion (at 20°C): 30 % per m/h
• Specific pressure loss (at 15°C): 1.1 kPa*h/m²
• 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

Storage and Handling

• Storage time (after delivery): max. 2 years
• Storage temperature range: -20 - +40 °C
• Store under roof in dry conditions without direct sunlight, above freezing point.
• If frozen, thaw gradually at ambient temperature.
• Packaging stability: Limited to 24 months under described storage conditions.

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