LEWATIT® MonoPlus TP 208

Summary

Product identification

• Product Name: Lewatit® MonoPlus TP 208
• Type: Weakly acidic, macroporous cation exchange resin with chelating iminodiacetic acid groups.
• Bead Structure: Monodisperse, uniform sized beads.
• Appearance: Beige, opaque.
• Delivery Form: Na⁺ form.
• Functional Group: Iminodiacetic acid.
• Matrix: Styrenic.
• Structure: Macroporous.

Applications

• Fine polishing of brine fed to chloralkali membrane cells for removal of alkaline earth cations (e.g., Ca²⁺, Mg²⁺, Ba²⁺, Sr²⁺), also in the presence of Fe³⁺ ions.
• Removal and recovery of heavy metals from process, waste, and potable water streams. The affinity order for metal cations is: Copper > Vanadium (VO₂⁺) > Uranium (UO₂²⁺) > Lead > Nickel > Zinc > Cadmium > Cobalt > Iron (II) > Beryllium > Manganese >> Calcium > Magnesium > Strontium > Barium >>> Sodium.

Operating limits

• Stability pH Range: 0-14
• Operating Temperature Range: 1-80 °C
• Maximum Operating Temperature: 80 °C
• Operating pH Range During Exhaustion: 2-12
• Storage Temperature Range: -20 - +40 °C
• Maximum Pressure Loss During Operation: 250 kPa
• Specific Flow Rate: 5-25 BV/h (max.)
• Bed Depth for Single Column: min. 1000 mm
• Freeboard During Backwash: min. 100 vol. %
• Backwash Bed Expansion: 5 % per m/h (at 20 °C)
• Specific Pressure Loss: 1.0 kPa*h/m² (at 15 °C)

Feed water

• Suitable for diluted and concentrated brine solutions.

Product water

• Total Capacity (H⁺ form): min. 2.5 eq/L

Electrical

• Not applicable.

Mechanical / hydraulic

• Uniformity Coefficient: max. 1.1
• Mean Bead Size (d₅₀): 0.65 mm (± 0.05 mm)
• Bulk Density for Shipment: 700 g/L (± 5%)
• Density: approx. 1.19 g/mL
• Water Retention (delivery form): 58-64 wt. % (approx.)
• Volume Change (Na⁺ - H⁺): max. -30 % (approx.)

Regeneration

• Regeneration Acid: HCl
• HCl Regeneration Concentration: approx. 4-10 wt. %
• HCl Regeneration Quantity (co-current): min. 150 g/L resin
• Regeneration Contact Time: min. 20 minutes
• Slow Rinse at Regeneration Flow Rate: min. 4 BV

Conditioning

• Conditioning Alkali: NaOH
• NaOH Conditioning Concentration: approx. 4 wt. %
• NaOH Conditioning Quantity (Na⁺ form): min. 80-96 g/L resin
• Conditioning Contact Time: min. 20 minutes
• Slow Rinse at Conditioning Flow Rate: min. 4 BV

Safety and Storage

• Safety: Avoid contact with strong oxidants. Observe the safety data sheet.
• Disposal: Dispose according to European waste nomenclature.
• Storage: Store above freezing point, in dry conditions, out of direct sunlight. If frozen, allow to thaw gradually at ambient temperature.
• Packaging Stability: Limited to 24 months under recommended storage conditions.

Disclaimer: This extracted information may not capture all figures, footnotes, or revisions. Contractual data must match the official OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror