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Jiangsu Haipu Functional Materials Co.,Ltd.

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HP4900——Silicon Removal Resin

Name: HP4900——Silicon Removal Resin
Brand: Jiangsu Haipu Functional Materials Co.,Ltd.

HP4900 is a specialized adsorbent engineered with a porous polymer matrix containing nanoscale functional sites. It selectively forms stable complexes with various silicon species (e.g., SiO₃²⁻, SiO₄⁴⁻) in nickel sulfate solutions, achieving ultra-high-purity nickel feedstock for high-performance ternary cathode materials in lithium batteries.

Leveraging nanoporous architecture and optimized hydrodynamic diffusion properties, HP4900 delivers rapid adsorption kinetics, minimal nickel salt carryover (<5% loss), and sub-1 mg/L silicon residuals. Its robust structure ensures long-term stability in harsh industrial environments.

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Product Advantages

Ultra-High Selectivity
Preferential adsorption of silicon over coexisting anions (e.g., SO₄²⁻, Cl⁻) with >10⁴ selectivity coefficient.
Nanostructured Efficiency
Nanopores (2–10 nm) enable 3× faster mass transfer compared to conventional adsorbents.
Mechanical Durability
Maintains >95% bed integrity after 500+ cycles at 50°C.
Broad Compatibility
Operates effectively in pH 3–14 and 5–50°C, suitable for concentrated nickel sulfate systems.

Application Effects

Lithium Battery Cathode Purification:

Reduces silicon content from 20 mg/L to<1 mg/L in nickel sulfate solutions, enhancing cathode material energy density by ≥15%

Industrial Wastewater Treatment:

Achieves<0.5 mg/L silicon discharge compliance for electronics manufacturing.

Application Scenarios

HP4900 is optimized for:

1. Lithium Battery Manufacturing

Deep purification of nickel sulfate solutions in ternary cathode precursor production.

2. Water Treatment

Ultra-low-silicon drinking water production (<0.1 mg/L).

Metallurgical Processing

Silicon removal from nickel/cobalt hydrometallurgical streams.

Physical and chemical parameters:

Parameter	Specification
Appearance	White to off-white spherical granules
Moisture Content (%)	50.0–60.0
Particle Size Range (0.3–1.10 mm) (%)	≥95.0
Wet Apparent Density (g/mL)	0.75–0.85
Sphericity (%)	≥95.0
Functional Groups	Silicon-selective chelating sites
Treatment Precision	<1 mg/L
Adsorption Capacity	1 g/L (saturation)
pH Range	3.0–14.0
Operating Temperature (°C)	5–50

Have Any Questions?

If you have any questions, please don't hesitate to contact us. We're always here to help with ion exchange resins for your business. Haipu is able to produce the product in according to your special needs.

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hpchinaresin@gmail.com

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+86-18168606502
+86-18915626237

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Building 28, Zone D, Phase 5, Bio-pharmaceutical Industrial Park, Suzhou Industrial Park

+86-18915626237