Purolite A500MB

Summary

Product identification

• Product Name: PUROLITE® A500MB
• Description: Strong Base Anion Macroporous, Macroporous Type I Strong Base Anion Exchange Resin
• Polymer Structure: Macroporous polystyrene crosslinked with divinylbenzene
• Functional Group: Type 1 Quaternary Ammonium
• Ionic form as shipped: Cl⁻

Application

• Demineralization - Mixed Bed

Physical and Chemical Characteristics

• Appearance: Spherical beads
• Total Capacity (min.): 1.15 eq/l (Cl⁻)
• Total Capacity (min.): 25.11 kGr/ft³ (Cl⁻)
• Moisture Retention: 53-58 % (Cl⁻)
• Mean Size Typical: 0.65-0.90 mm
• Uniformity Coefficient (max.): 1.70

Notes

Purolite A500MB is a macroporous ion exchange resin designed for use as the anion component in mixed-bed demineralization. Its optimized particle size and density facilitate excellent separation from cation components during regeneration. It is particularly suitable for challenging operating conditions, including those with osmotic stress or high flow rates, and for treating water containing significant levels of high-molecular-weight organic materials like fulvic or humic acids. It exhibits superior resistance to fouling, osmotic shock, and thermal shock compared to gel resins and other macroporous resins.

For optimal performance in mixed beds, Purolite A500MB must be converted to the hydroxide form before mixing with the cation component (in hydrogen form). The resin has a high affinity for mineral anions, organics, and silica, which is beneficial for producing high-quality treated water but necessitates efficient regeneration, especially from the chloride form as supplied. An initial double regeneration is recommended. High levels of regeneration are also advantageous for achieving high treated water quality or when dealing with high organic loads in the influent.

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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