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Highly uniform spherical beads ensure consistent hydraulic performance and low pressure drop in column operation.
Exceptional chemical and osmotic stability, enabling reliable long-term use in demanding industrial water treatment environments.
Optimized macroporous polystyrene-divinylbenzene matrix provides excellent kinetic performance for rapid ion exchange kinetics.
Low total organic carbon (TOC) extractables, minimizing post-treatment contamination in ultrapure water and pharmaceutical applications.
Designed for full regeneration with standard regenerants (e.g., NaCl, HCl, NaOH), supporting sustainable and cost-efficient cycle operation.
Production of ultrapure water for semiconductor manufacturing and microelectronics rinsing processes.
Polishing step in pharmaceutical-grade water systems (PW, WFI pre-polish) compliant with USP/EP standards.
Removal of trace heavy metals and hardness ions from process streams in fine chemical synthesis.
Decolorization and deionization of sugar syrups and food-grade aqueous solutions.
Pre-treatment and polishing in nuclear power plant secondary coolant purification systems.
| Chemical Type | Macroporous strong acid cation exchange resin (sulfonated polystyrene-divinylbenzene) |
| Product Form | Moist, spherical beads |
| Appearance | Opaque, brownish-yellow beads |
| Functional Group | Sulfonic acid (–SO₃H) |
| Ionic Form | H⁺ form (standard delivery) |
| Particle Size Range | 0.3 – 1.2 mm (95% retained on 0.3 mm sieve, passing 1.2 mm sieve) |
| Moisture Content | 47 – 53% (as shipped) |
| Uniformity Coefficient | ≤ 1.6 |
Q1: What is the primary functional group and ionic form of LEWATIT MP 62?
A: LEWATIT MP 62 is a strongly acidic cation exchange resin based on a styrene-divinylbenzene matrix with sulfonic acid functional groups, supplied in the sodium (Na⁺) ionic form.
Q2: Is LEWATIT MP 62 suitable for use in food or pharmaceutical processing applications?
A: LEWATIT MP 62 is designed for industrial water treatment and process purification. While it meets general regulatory expectations for ion exchange resins used in potable water systems, specific approval for direct food contact or pharmaceutical manufacturing requires validation by the end user against applicable local and application-specific regulatory requirements.
Q3: How does LEWATIT MP 62 compare to gel-type cation resins in terms of physical stability and kinetic performance?
A: As a macroporous resin, LEWATIT MP 62 offers enhanced mechanical and osmotic stability—particularly under frequent regeneration cycles or in solutions containing organic foulants—compared to conventional gel-type resins. Its porous structure also supports faster ion exchange kinetics in low-ionic-strength or high-viscosity media.
Q4: What are typical regeneration requirements for LEWATIT MP 62 in softening service?
A: Regeneration is typically performed with sodium chloride (NaCl) brine. The required salt dosage and concentration depend on service conditions—including influent hardness, flow rate, and bed depth—but generally follow standard strong-acid cation resin practices with moderate excess salt usage to ensure full capacity recovery.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
