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Highly selective for heavy metal ions including Cu²⁺, Ni²⁺, Co²⁺, and Cd²⁺ under a wide pH range (2–12).
Functionalized with iminodiacetic acid groups enabling strong chelation and excellent regeneration efficiency.
Superior chemical and osmotic stability in acidic, alkaline, and oxidizing environments.
Low pressure drop and high flow capacity due to uniform spherical bead morphology and optimal crosslinking (8% DVB).
Compliant with FDA 21 CFR §173.25 and meets ISO 9001 manufacturing standards.
Recovery of valuable metals from electroplating rinse waters and PCB etching solutions.
Pretreatment of ultrapure water systems to remove trace transition metals in semiconductor manufacturing.
Removal of toxic heavy metals from mining wastewater and hydrometallurgical leachates.
Separation and concentration of cobalt and nickel in battery recycling effluents.
Polishing step in pharmaceutical process water systems to meet stringent USP <846> metal limits.
| Chemical Type | Iminodiacetic acid functionalized polystyrene-divinylbenzene copolymer |
| Product Form | Moist, spherical beads |
| Appearance | Light yellow to amber, translucent beads |
| Ion Form | Sodium form (ready-to-use) |
| Particle Size Range | 0.3–1.2 mm (≥95% retained on 16 mesh, passes 50 mesh) |
| Moisture Content | 45–55% (w/w) |
| Crosslinking Degree | 8% divinylbenzene (DVB) |
| Functional Group Capacity | ≥2.0 eq/L (dry basis) |
Q1: What types of metal ions does Feilong D463 effectively bind in aqueous systems?
A: Feilong D463 is specifically designed to chelate transition metal ions such as copper (Cu²⁺), nickel (Ni²⁺), cobalt (Co²⁺), zinc (Zn²⁺), and iron (Fe²⁺/Fe³⁺), with particularly strong affinity under near-neutral to mildly alkaline pH conditions.
Q2: How does Feilong D463 differ from conventional strong acid cation exchange resins?
A: Unlike standard sulfonated polystyrene resins, Feilong D463 features a functionalized iminodiacetate chelating group that enables selective, high-affinity binding to specific metal cations—even in the presence of excess calcium or magnesium—while maintaining stability across a broad pH range.
Q3: Can Feilong D463 be regenerated after metal loading, and what are typical regeneration requirements?
A: Yes, Feilong D463 is fully regenerable using dilute mineral acids (e.g., 2–5% HCl or H₂SO₄) or complexing agents such as EDTA solutions. Regeneration efficiency depends on the bound metal species and operating conditions, but multiple cycles of loading and elution are routinely achieved without significant loss of capacity.
Q4: Is Feilong D463 suitable for use in pharmaceutical or food-grade water purification applications?
A: Feilong D463 is manufactured to high-purity standards and is commonly employed in high-value water polishing and metal removal processes where stringent purity is required. However, end-use compliance—including regulatory clearance for direct food or pharmaceutical contact—must be verified by the final formulator in accordance with applicable local regulations and intended process conditions.
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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
