LEWATIT® TP 260

Summary

Product identification

Lewatit® TP 260 is a weakly acidic, macroporous cation exchange resin with chelating amino methyl phosphonic acid groups. It has a heterodispersed bead size distribution.

Applications

This resin is suitable for:

• Secondary purification of brine feed to chlorakali membrane cells (in the absence of iron (III) ions and with low demand on Sr and Ba removal).
• Uranium removal from crude phosphoric acid.
• Titanium removal from recycled battery acid.
• Antimony (Sb) and tungsten (Bi) removal from copper containing electrolytes.
• Aluminum removal from urea solutions.
• Fluoride removal (with aluminum doped Lewatit® TP 260).
• Lead and stominum removal from BF₄⁻ containing wastewater from PCB production.
• Removal of iron (II), nickel, and zinc from 5% gluconate containing liquid metal working solutions.

Physical and Chemical Properties

• Ionic form as shipped: Na⁺
• Functional group: Aminomethylphosphonic acid
• Matrix: crosslinked polystyrene
• Structure: macroporous
• Appearance: beige, opaque
• Total capacity (H-Form): min. 2.3 eq/l
• Uniformity Coefficient: max. 1.8
• Bead size (> 90 %): 0.4 - 1.25 mm
• Effective size: 0.55 (± 0.05) mm
• Bulk density (± 5 %): 720 g/l
• Water retention: 58 - 62 wt. %
• Volume change (Na⁺ --> H⁺): max. -25 vol. %
• Stability (pH-range): 0 - 14
• Storability: max. 2 years
• Storability temperature range: -20 - 40 °C

Recommended Operating Conditions

• Operating temperature: max. 80 °C
• Operating pH-range: 1 - 12
• Bed depth: min. 1000 mm
• Specific pressure drop (15 °C): approx. 1.1 kPa·h/m²
• Pressure drop: max. 250 kPa
• Linear velocity (operation): max. 40 m/h
• Linear velocity (backwash, 20 °C): approx. 10 - 15 m/h
• Bed expansion (20 °C, per m/h): approx. 4 vol. %
• Freeboard (backwash, extern / intern): 80 vol. %

Regeneration (HCl)

• Co-current regeneration level: approx. 140 - 150 g/l
• Co-current regeneration concentration: approx. 4 - 10 wt. %
• Linear velocity (regeneration): approx. 5 m/h
• Linear velocity (rinsing): approx. 5 m/h

Conditioning (NaOH)

• Conditioning level: 80 - 88 g/l
• Conditioning concentration: approx. 4 wt. %
• Linear velocity (conditioning): approx. 5 m/h
• Linear velocity (rinsing): approx. 5 m/h
• Rinse water requirement (slow / fast): approx. 3 - 5 BV

Additional Information

• Safety: Observe Safety Data Sheet. Avoid contact with strong oxidants like nitric acid.
• Disposal: Follow European waste nomenclature.
• Storage: Store above freezing point, dry, out of direct sunlight. Thaw frozen resin gradually.

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