AmberLite HPR4700 Cl

Summary

Product identification

AmberLite™ HPR4700 Cl Ion Exchange Resin is a uniform particle size, gel, strong base anion exchange resin. It was previously sold as DOWEX™ MARATHON™ 550A Cl Ion Exchange Resin.

Description

This resin is designed for industrial demineralization and as an alternative to OH- form resin for condensate polishing in fossil-fired electric generating stations. It offers good bead integrity and rapid exchange kinetics due to its small average particle size, making it suitable for high flow rates. Its bead size uniformity and light color are designed to complement AmberLite™ HPR1300 H Ion Exchange Resin for easy separation in mixed beds. AmberLite™ HPR4700 Cl can also be used in single-bed demineralization if organic loading is not a limiting factor.

Applications

• Demineralization:
  • Ideal for treating water with a high percentage of silica.
  • Suitable for removal of strong and weak acids.
  • Aims for the lowest silica leakage.
  • Used in single-bed industrial demineralization requiring high water purity.
• Condensate polishing
• Mixed bed polishing

Resin Pairings

• Recommended pairing in industrial demineralization: AmberLite™ HPR1300 H Ion Exchange Resin (gel)
• Additional pairing in industrial demineralization: AmberLite™ HPR1200 H Ion Exchange Resin (gel)
• Additional pairing in condensate polishing: AmberLite™ HPR1300 H Ion Exchange Resin (gel)

System Designs

Compatible with all system technologies, including:

• Co-current
• Counter-current / Hold-down
• Packed beds
• Mixed beds

Typical Properties

Physical Properties

• Copolymer: Styrene-divinylbenzene
• Matrix: Gel
• Type: Strong base anion, Type I
• Functional Group: Trimethylammonium
• Physical Form: White to amber, translucent, spherical beads

Chemical Properties

• Ionic Form as Shipped: Cl⁻
• Total Exchange Capacity: ≥ 1.35 eq/L (Cl⁻ form)
• Water Retention Capacity: 42.0 – 49.0% (Cl⁻ form)

Particle Size

• Particle Diameter: 550 ± 50 µm
• Uniformity Coefficient: ≤ 1.1
• < 300 µm: ≤ 0.5%
• > 850 µm: ≤ 1.0%

Stability

• Whole Uncracked Beads: ≥ 95%

Swelling

• Cl⁻ → OH⁻: 25%

Density

• Particle Density: 1.09 g/mL
• Shipping Weight: 690 g/L

Suggested Operating Conditions

• Temperature Range:
  • OH⁻ form: 5 – 60°C (41 – 140°F)
  • Cl⁻ form: 5 – 100°C (41 – 212°F)
• pH Range:
  • Service Cycle: 1 – 14
  • Stable: 0 – 14

Note: Operating at elevated temperatures, for example above 60 – 70°C (140 – 158°F), may impact resin life.

Hydraulic Characteristics

Estimated bed expansion and pressure drop figures are provided in the original document as a function of backwash flowrate and service flowrate, respectively, at temperatures of 10–60°C (50–140°F).

Product Stewardship

DuPont is committed to product stewardship, assessing health, safety, and environmental information for its products.

Customer Notice

Customers are encouraged to review their manufacturing processes and applications to ensure safe and appropriate use of DuPont products. Safety data sheets should be consulted prior to use.

WARNING: Oxidizing agents such as nitric acid can attack organic ion exchange resins, potentially leading to hazardous reactions. Consult knowledgeable sources before using strong oxidizing agents.

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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