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High-capacity strong acid cation exchange resin with sulfonic acid functional groups.
Optimized spherical bead morphology for low pressure drop and uniform flow distribution in fixed-bed systems.
Excellent chemical and osmotic stability, suitable for repeated regeneration cycles with mineral acids.
Consistent particle size distribution (0.3–1.2 mm) ensuring high hydraulic efficiency and reduced channeling risk.
Low extractables and high purity — compliant with ISO 9001 manufacturing standards for critical water treatment applications.
Industrial boiler feedwater softening and demineralization.
Pretreatment for reverse osmosis (RO) and electrodeionization (EDI) systems.
Pharmaceutical-grade purified water (PW) and water for injection (WFI) polishing.
Food & beverage process water conditioning, including sugar decolorization support.
Nuclear power plant service water purification requiring ultra-low conductivity and metal leaching control.
| Chemical Type | Strongly acidic cation exchanger (sulfonated polystyrene-divinylbenzene copolymer) |
| Product Form | Sodium form (Na⁺), fully regenerated and ready for service |
| Appearance | Uniform amber, spherical beads |
| Particle Size Range | 0.3 – 1.2 mm |
| Moisture Content | 45 – 50 % (as shipped) |
| Ion Exchange Capacity (Total) | ≥ 2.0 eq/L (dry resin) |
| Operating pH Range | 0 – 14 (stable under standard regeneration conditions) |
| Max. Service Temperature | 120 °C (short-term), 100 °C (continuous) |
Q1: What is the primary functional group and ionic form of LEWATIT S 1567?
A: LEWATIT S 1567 is a strongly acidic cation exchange resin based on a styrene-divinylbenzene matrix, functionalized with sulfonic acid groups. It is supplied in the sodium (Na⁺) form, making it suitable for softening and selective cation removal applications.
Q2: Is LEWATIT S 1567 suitable for food-grade or pharmaceutical water treatment?
A: Yes — LEWATIT S 1567 is manufactured and tested to meet relevant global regulatory expectations for ion exchange resins used in the production of potable water, food-contact process water, and purified water for pharmaceutical applications, subject to proper validation and regeneration protocols.
Q3: How does LEWATIT S 1567 compare to conventional gel-type strong acid cation resins in terms of kinetic performance?
A: As a macroporous resin, LEWATIT S 1567 offers enhanced mass transfer kinetics and improved resistance to fouling compared to standard gel-type resins — particularly beneficial in applications involving organically loaded or turbid feedwaters where diffusion limitations may occur.
Q4: What are typical regeneration requirements for LEWATIT S 1567?
A: Regeneration is commonly performed using sodium chloride (NaCl) brine at concentrations between 8–12% w/w. The required regenerant dosage and flow rates depend on service cycle conditions, but generally follow industry-standard practices for macroporous strong acid cation resins.
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