LEWATIT® MDS 2368

Summary

Product identification

Lewatit® MDS 2368 is a food grade, macroporous, strongly acidic cation exchange resin. It is based on a styrene-divinylbenzene copolymer, is bead-shaped, and has a special bead size distribution. It is intended for use in chromatographic separation, for example, in sugar separation.

Specified Data

• Common Description: Food grade, macroporous, strongly acidic cation exchange resin
• Delivery form: Na⁺ form
• Functional group: Sulfonic acid
• Matrix: Styrenic
• Structure: Macroporous
• Appearance: Beige-gray, opaque
• Uniformity coefficient: max. 1.1
• Mean bead size (d50): 0.34-0.40 mm
• Total capacity (delivery form): min. 1.0 eq/L

Typical Physical and Chemical Properties

• Bulk density for shipment (+/- 10%): 760 g/L
• Density: approx. 1.2 g/mL
• Water retention (H⁺ form): approx. 63-68 % (by weight)
• Stability pH range: 5-14
• Stability temperature range: 1-120 °C
• Storage time (after delivery): min. 0.5 years
• Storage temperature range: -20 - +40 °C

Operation

• Operating temperature: max. 120 °C
• Operating pH range during exhaustion: 0-14
• Bed depth for single column: min. 800 mm
• Backwash bed expansion per m/h (20°C): 15 %
• Specific pressure loss (15°C): 3.5 kPa*h/m²
• Max. pressure loss during operation: 250 kPa

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. 90 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

Rinse Cycles

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

Safety Precautions

Strong oxidants, e.g. nitric acid, can cause violent reactions if they come into contact with ion exchange resins.

Storage

It is recommended to store ion exchange resins at temperatures above the freezing point of water, under roof, in dry conditions, and without exposure to direct sunlight. If resin becomes frozen, it should not be mechanically handled and should be left to thaw out gradually at ambient temperature. It must be completely thawed before handling or use.

Packaging

Packaging stability is limited to 24 months under recommended storage conditions. It is recommended to use the product within this timeframe, otherwise the packaging condition should be checked regularly.

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