English
Español
tiếng việt
русский
Highly selective for potassium ions (K⁺) in mixed-cation aqueous environments.
Stable polyacrylic matrix ensures excellent mechanical strength and resistance to osmotic shock.
Optimized bead uniformity and narrow particle size distribution for low pressure drop and consistent flow performance.
Low soluble organic content minimizes post-treatment leaching and meets stringent water purity requirements.
Regenerable with standard potassium chloride (KCl) solutions, enabling sustainable operational cycles.
Potassium recovery and concentration from industrial process streams.
Removal of interfering potassium ions in pharmaceutical-grade water polishing systems.
Pre-concentration step prior to lithium extraction from brine solutions.
Softening and selective ion removal in high-purity boiler feedwater pretreatment.
Electrolyte conditioning in specialty chemical synthesis requiring precise K⁺ control.
| Chemical Type | Polyacrylic acid-based cation exchange resin, potassium-selective |
| Product Form | Moist, spherical beads |
| Appearance | Opaque white to off-white beads |
| Functional Group | Carboxylic acid (–COOH) |
| Ion Form | Potassium (K⁺) form as supplied |
| Moisture Content | 45–50% (w/w) |
| Particle Size Range | 0.3–1.2 mm |
| Uniformity Coefficient | ≤1.6 |
Q1: What is the primary functional group and ionic form of LEWATIT K 1161?
A: LEWATIT K 1161 is a strongly acidic cation exchange resin based on a sulfonated polystyrene-divinylbenzene matrix, supplied in the sodium (Na⁺) form. It is designed for efficient removal of multivalent cations such as calcium, magnesium, iron, and heavy metals from aqueous streams.
Q2: Is LEWATIT K 1161 suitable for use in potable water treatment applications?
A: Yes — LEWATIT K 1161 is widely used in drinking water softening and demineralization systems. It complies with relevant global regulatory frameworks for indirect food contact and is commonly specified in municipal and point-of-use water treatment installations where reliable cation removal and regeneration performance are required.
Q3: How does LEWATIT K 1161 compare to gel-type resins in terms of kinetic performance and fouling resistance?
A: As a macroporous resin, LEWATIT K 1161 offers superior kinetics and enhanced resistance to organic fouling compared to conventional gel-type cation exchangers. Its rigid, high-surface-area structure maintains consistent flow characteristics and regeneration efficiency even in feedwaters containing moderate levels of natural organic matter or suspended solids.
Q4: What are typical regeneration conditions for LEWATIT K 1161?
A: Regeneration is typically performed using sodium chloride (NaCl) brine at concentrations between 8% and 12%, with standard dosage rates ranging from 100 to 150 g NaCl per liter of resin. Optimal regeneration efficiency depends on contact time, flow rate, and feedwater composition — pilot testing is recommended for system-specific optimization.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
