LEWATIT® PH 1074 HEP

Summary

Product identification

Lewatit® PH 1074 HEP is a macroporous, strongly basic (type I) anion exchange resin based on a crosslinked polyacrylate. It is suitable for the decolorization of liquid sugar syrups and optimized for biopharmaceutical processing applications to support the capture and purification of high molecular weight organic compounds from sugar solutions or complex fermentation broth process solutions.

Applications (in chloride form)

• Decolorization of syrups from cane sugar production
• Heparin extraction and purification, including heparin storage on resin
• Chondroitin sulfate extraction and purification
• Nadroparin calcium extraction and purification
• Dermatan sulfate extraction and purification
• Decolorization of bioprocessing solutions

Common Description

• Delivery form: Cl⁻
• Functional group: Quaternary ammonium; type 1
• Matrix: Acrylic
• Structure: Macroporous
• Appearance: White, yellow

Specified Data

• Uniformity coefficient: max. 1.8
• Range of size for >90 vol% of all beads: 0.40-1.60 mm
• Effective size (d₁₀): 0.50-0.65 mm
• Fines (less than 0.315 mm): max. 0.5 vol %
• Total capacity (delivery form): min. 0.7 eq/L

Typical Physical and Chemical Properties

• Bulk density for shipment (+/- 10%): 740 g/L
• Density: approx. 1.1 g/mL
• Water retention (delivery form): approx. 69-79 % by weight
• Volume change (Cl⁻ - OH⁻): max. approx. 30 %
• Stability pH range: 0-14
• Stability temperature range: 1-80 °C (Cl⁻)
• Storage time (after delivery): min. 2 years
• Storage temperature range: -20 - +40 °C

Operation

• Operating temperature: max. 80 °C (Cl⁻)
• Operating pH range during exhaustion: 0-12
• Bed depth for single column: min. 800 mm
• Backwash bed expansion per m/h (20°C): 13 %
• Specific pressure loss (15°C): 2.2 kPa*h/m²
• Max. pressure loss during operation: 250 kPa
• Specific flow rate: max. 5 BV/h
• Freeboard during backwash: min. 80-100 vol. %

Regeneration

• NaCl regeneration concentration: approx. >14 wt. %
• NaCl regeneration quantity co-current: min. 200 g/L resin
• NaCl/NaOH regeneration concentration: approx. 10/0.5 wt. %
• NaCl/NaOH regeneration quantity co-current: min. 200/2 g/L resin
• Regeneration contact time: min. 60 minutes
• Slow rinse at regeneration flow rate: min. 2 BV
• Fast rinse at service flow rate: min. 4 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.

Toxicity

The safety data sheet must be observed.

Disposal

In the European Community ion exchange resins have to be disposed of according to the European waste nomenclature.

Storage

Recommended storage temperatures are above the freezing point of water, under roof, in dry conditions without direct sunlight. If frozen, thaw gradually at ambient temperature.

Packaging

Packaging stability is limited to 24 months under recommended storage conditions.

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