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Highly selective for potassium (K⁺) and ammonium (NH₄⁺) ions in complex aqueous matrices.
Stable polyacrylic matrix offering excellent resistance to osmotic shock and mechanical attrition.
Optimized bead uniformity and narrow particle size distribution for low pressure drop and consistent hydraulic performance.
Low sodium leakage and high regeneration efficiency with standard brine or acid solutions.
Suitable for continuous and batch operation modes in both upflow and downflow configurations.
Ammonium removal from municipal and industrial wastewater prior to discharge or reuse.
Potassium recovery and concentration in food processing effluents (e.g., potato starch, sugar beet).
Nutrient polishing in aquaculture and hydroponic recirculating systems.
Pre-treatment for reverse osmosis systems to prevent scaling by selective monovalent cation control.
Radioactive cesium (Cs⁺) and strontium (Sr²⁺) mitigation in nuclear decontamination water streams.
| Chemical Type | Polyacrylic acid-based strong acid cation exchanger |
| Product Form | Moist spherical beads |
| Appearance | Opaque off-white to light yellow beads |
| Functional Group | Carboxylic acid (–COOH) |
| Ion Form | Hydrogen (H⁺) form as supplied |
| Particle Size Range | 0.4 – 1.2 mm |
| Moisture Content | ~45 – 50 % (w/w) |
| Temperature Limit | Max. 80 °C (short-term), 60 °C (continuous) |
Q1: What is the primary functional group and ionic form of LEWATIT K 6362?
A: LEWATIT K 6362 is a strongly basic anion exchange resin in the chloride form, featuring quaternary ammonium functional groups grafted onto a styrene-divinylbenzene matrix. It is designed for efficient removal of anionic impurities, including silica, nitrate, sulfate, and organic acids.
Q2: Is LEWATIT K 6362 suitable for pharmaceutical or food-grade water polishing applications?
A: Yes — LEWATIT K 6362 is manufactured under quality systems aligned with ISO 9001 and is commonly selected for high-purity water treatment in pharmaceutical, biotechnology, and food & beverage industries. Its low extractables profile and consistent performance support compliance with stringent purity requirements when used in validated systems.
Q3: How does LEWATIT K 6362 differ from conventional gel-type strong base anion resins?
A: LEWATIT K 6362 is a macroporous resin with enhanced physical stability and superior resistance to organic fouling compared to standard gel-type anion exchangers. Its rigid, high-crosslinked structure provides better hydraulic performance under variable flow conditions and improved regeneration efficiency in challenging feedwaters.
Q4: What are typical operating temperature and pH limits for this resin?
A: LEWATIT K 6362 is stable across a broad operational range, typically supporting continuous service temperatures up to 50 °C and intermittent exposure up to 60 °C. It maintains effective ion exchange capacity within pH 0–14, making it compatible with both acidic and alkaline process streams.
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E-mail: wangxingqiang@ericwchem.com
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