LEWATIT® A 8073

Summary

Product identification

• Product Name: Lewatit® A 8073
• Type: Medium basic (bifunctional), gelular anion exchange resin
• Matrix: Acrylic-divinylbenzene copolymer
• Functional group: Tertiary amine / quaternary ammonium
• Structure: Gel
• Appearance: Ivory, opaque
• Common Description: Free base / Cl⁻
• Delivery form: See official PDF for exact tabulated values.

Applications

• Demineralization of water for industrial steam generation (co-current or counter-current systems like Lewatit® WS System, Lewatit® Liftbed System, Lewatit® Rinsebed System).
• Removal of organic matter, especially from surface water.
• Arrangements with decarbonator for demineralization plants.
• Arrangements without a weakly dissociated anion exchanger for demineralization plants.

Operating limits

• Stability pH range: 0-14
• Operating temperature: max. 35 °C
• Operating pH range during exhaustion: 0-12
• Max. pressure loss during operation: 150 kPa

Feed water

• Effective for demineralization of water with a relatively high content of Free Mineral Acidity (FMA) and moderate ratio of weakly dissociated ions (SiO₂, CO₂).
• Effective for removal of organic matter, especially from surface water.

Product water

• High resistance to organic fouling.
• High total capacity.
• Outstanding mechanical stability and excellent resistance to osmotic shock.

Electrical

No data available in the extract.

Mechanical / hydraulic

• Uniformity coefficient: max. 1.8
• Effective size (d₁₀): 0.50 - 0.75 mm
• Bulk density for shipment (+/- 5%): 710 g/L
• Density: approx. 1.06 g/mL
• Water retention (delivery form): approx. 56-64 % by weight
• Volume change (free base / Cl⁻ - Cl⁻): max. approx. 14 %
• Bed depth for single column: min. 800 mm
• Backwash bed expansion per m/h (20°C): 12 %
• Specific pressure loss (15°C): 1.1 kPa*h/m²
• Specific flow rate: max. 50 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. 3 BV
• Fast rinse at service flow rate: min. 5 BV

Storage and Handling

• Storage time (after delivery): max. 2 years
• Storage temperature range: -20 to +40 °C
• Recommended storage conditions: Above freezing point of water, under roof, dry, without direct sunlight.
• Frozen resin handling: Allow to thaw gradually at ambient temperature; do not handle while frozen.
• Safety: Observe Safety Data Sheet. Avoid contact with strong oxidants like nitric acid.
• Disposal: According to European waste nomenclature.

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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