Datasheet summary
LEWATIT® K 7367
PDF datasheet mirror for LEWATIT® K 7367 (Lanxess LEWATIT). Verify with OEM before design.
Summary
Product identification
Lewatit® K 7367 is a strongly basic, macroporous anion exchange resin with beads of uniform size (monodisperse) based on a styrene-divinylbenzene copolymer.
Ionic form as shipped: Cl⁻ Functional group: quaternary amine, type I Matrix: crosslinked polystyrene Structure: macroporous Appearance: beige, opaque
Physical and Chemical Properties
- Total capacity: min. 1.0 eq/l
- Uniformity Coefficient: max. 1.1
- Mean bead size: 0.62 (+/- 0.05) mm
- Bulk density: 620 (+/- 5 %) g/l
- Density: approx. 1.06 g/ml
- Water retention: 63 - 68 wt. %
- Volume change (Cl⁻ --> OH⁻): max. 20 vol. %
- Stability (pH-range): 0 - 14
- Storability (years): max. 2
- Storability (temperature range): -20 - 40 °C
Recommended Operating Conditions
- Operating temperature: max. 70 °C
- Operating pH-range: 0 - 12
- Bed depth: min. 800 mm
- Specific pressure drop (15 °C): approx. 0.8 kPa*h/m²
- Pressure drop: max. 300 kPa
- Linear velocity (operation): max. 60 m/h (100 m/h for polishing)
- Linear velocity (backwash, 20 °C): approx. 5 m/h
- Bed expansion (20 °C, per m/h): approx. 18 vol. %
- Freeboard (backwash, extern / intern): 100 vol. %
Regeneration (NaOH)
Counter current regeneration:
- Level: approx. 50 g/l
- Concentration: approx. 2 - 4 wt. %
- Linear velocity (regeneration): approx. 5 m/h
- Linear velocity (rinsing): approx. 5 m/h
- Rinse water requirement (slow / fast): approx. 2.5 BV
Co current regeneration:
- Level: approx. 100 g/l
- Concentration: approx. 3 - 5 wt. %
- Linear velocity (regeneration): approx. 5 m/h
- Linear velocity (rinsing): approx. 5 m/h
- Rinse water requirement (slow / fast): approx. 8 BV
Additional Information & Regulations
Safety precautions: Strong oxidants, e.g. nitric acid, can cause violent reactions if they come into contact with ion exchange resins. Observe the safety data sheet.
Storage: Store at temperatures above freezing point, under roof, dry, and out of direct sunlight. If frozen, allow to thaw gradually at ambient temperature before handling or use.
Disclaimer: This extraction may miss figures, footnotes, or revisions; contractual data must match the OEM PDF revision used on the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.