Product Overview

• High Selectivity: Affinity to metal ions, order (strongest to weakest): Cu²⁺ > VO₂⁺ > UO₂⁺ > Pb²⁺ > Ni²⁺ > Cd²⁺ > Co²⁺ > Ca²⁺ > Mg²⁺ > Sr²⁺ > Ba²⁺ >> Na⁺.

• Monodisperse Advantages: Uniform particle size, strong mechanical/osmotic stability, fast exchange kinetics, and stable effluent quality (e.g., calcium can be reduced to < 20 ppb).

• pH-dependent Capacity: Working capacity at pH 10 is approximately 3 times that at pH 7. • At pH 10 and Ca²⁺ 1–5 ppm, 1 L of resin can exchange approximately 12 g of Ca²⁺.

• Anti-interference ability: It can still efficiently remove Ca²⁺, Mg²⁺, and Sr²⁺ even in the presence of high-concentration brine (such as chlor-alkali brine) and Fe³⁺.

• Chlor-alkali industrial brine refining: Removal of Ca²⁺, Mg²⁺, Ba²⁺, and Sr²⁺; protection of membrane electrolytic cells.

• Influent pH 8–11, flow rate 20–30 BV/h, residual calcium < 20 ppb.

• Hydrometallurgy: Removal of heavy metals from sulfate/chloride electrolytes, rare earth separation, and removal of calcium and magnesium from battery recovery solutions.

• Wastewater treatment: Removal of Pb²⁺/Ni²⁺/Cd²⁺ from electroplating/PCB wastewater, removal of heavy metals from drinking water, and removal of hardness from high-salinity wastewater.

• Food and pharmaceutical: Removal of calcium and magnesium from sugar solutions, and removal of heavy metals from gelatin/amino acid solutions.

• Matrix Structure: Cross-linked polystyrene (macroporous)

• Functional Group: Iminodiacetic acid (chelate)

• Appearance: Beige opaque spherical particles

• Particle Size Range: 0.55±0.05 mm (monodispersible)

• Average Particle Size: 0.55±0.05 mm (monodispersible)

• Homogeneity Coefficient: ≤1.1 (monodispersible version); ≤1.8 (standard version)

• Exchange Capacity: ≥2.2 eq/L (Na⁺ type)

• Moisture Content: 55–60% (Na⁺ type)

• Bulk Density: 740±37 g/L

• True Density: Approximately 1.17 g/mL