LEWATIT® S 1568

Summary

Product identification

• Product Name: LEWATIT® S 1568
• Type: Strongly acidic cation exchange resin
• Matrix: Styrenic
• Structure: Gel, monodisperse
• Functional Group: Sulfonic acid
• Appearance: Dark brown beads
• Food Grade: Yes
• Edition: 2020-09-25

Applications

• Softening of aqueous solutions, especially juices in sugar and pectin production.
• Decationization of solutions of organic products (e.g., beets, sugar cane, starch sugar, glycerol, gelatin, food-grade acids).
• Production of amino acids (e.g., lysine).

Key Features

• High operating capacity due to favorable kinetics of monodisperse beads.
• High exchange capacities during regeneration and loading.
• Good utilization of total capacity.
• Low demand for wash water.
• Continuous flow path for regeneration agents and solutions, leading to an equally shaped working zone.
• Nearly linear pressure loss gradient, enabling operation at higher bed depths.

Operating limits

• Stability pH range: 0-14
• Stability temperature range: 1-120 °C
• Operating temperature (max): 120 °C
• Operating pH range during exhaustion: 0-14
• Maximum pressure loss during operation: 200 kPa

Feed water / Process considerations

• Bed depth (single column, min): 800 mm
• Freeboard (during backwash, min): 80-100 vol. %

Product water / Performance

• Total capacity (delivery form, min): 1.8 eq/L
• Water retention (delivery form, approx.): 45-50 weight %
• Volume change (Na⁺ - H⁺, max approx.): 12 %

Electrical

(No electrical specifications provided in the extract)

Mechanical / Hydraulic

• Bulk density (for shipment, +/- 5%): 810 g/L
• Density (approx.): 1.3 g/mL
• Backwash bed expansion (per m/h at 20°C): 4 %
• Specific pressure loss (at 15°C): 1 kPa*h/m²
• Specific flow rate (max): 20 BV/h

Regeneration

HCl Regeneration

• Concentration (approx.): 4-6 wt. %
• Quantity (co-current, min): 100 g/L resin
• Quantity (counter-current, min): 55-65 g/L resin

H₂SO₄ Regeneration

• Concentration (approx.): 1.5-3 wt. %
• Quantity (co-current, min): 150 g/L resin
• Quantity (counter-current, min): 80 g/L resin

NaCl Regeneration

• Concentration (approx.): 8-10 wt. %
• Quantity (co-current, min): 200 g/L resin
• Quantity (counter-current, min): 100 g/L resin

NaOH Regeneration

• Concentration (approx.): 4 wt. %
• Quantity (co-current, min): 40 g/L resin

Rinse Cycles

• Regeneration contact time (min): 20 minutes
• Slow rinse (at regeneration flow rate): 2 BV (min)
• Fast rinse (at service flow rate): 4 BV (min)

Storage and Handling

• Storage temperature range: -20 to +40 °C
• Recommended storage: Above freezing point of water, dry conditions, out of direct sunlight.
• Storage time (after delivery, max): 2 years
• Frozen resin: Thaw gradually at ambient temperature; do not handle while frozen.
• Safety: Avoid contact with strong oxidants (e.g., nitric acid). Observe Safety Data Sheet.
• Disposal: According to European waste nomenclature in the European Community.

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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