Jiangsu Haipu Functional Materials Co.,Ltd.
EN

HP686——Copper removal resin

HP686 is a weakly basic chelating resin designed for highly selective adsorption of metals such as copper (Cu) and nickel (Ni), which features a uniformly cross-linked polymer matrix (both internally and externally), offering excellent adsorption kinetics, high adsorption capacity, and superior mechanical strength.

Product Advantages

HP686 features a uniformly cross-linked polymer matrix (both internally and externally), offering excellent adsorption kinetics, high adsorption capacity, and superior mechanical strength.

Performance

Even in acidic feed solutions with pH≈2, HP686 demonstrates highly efficient removal of heavy metals. Its adsorption selectivity for metal ions follows the order:
Cu²⁺ >> Ni²⁺ > UO₂²⁺ > Fe³⁺ > Zn²⁺ > Co²⁺ > Cd²⁺ > Fe²⁺ > Mn²⁺

Application Scenarios

• Purification of nickel electrolyte anolyte in chloride salt systems or chloride-sulfate mixed systems for copper removal.
• Recovery of nickel (Ni) and copper (Cu) and solution purification in processes such as lithium battery cathode material production and lithium battery recycling.
• Effective copper ion (Cu²⁺) adsorption under highly acidic conditions (pH < 2).
• Nickel ion (Ni²⁺) removal from cobalt electrolytes for electrolyte purification.
• Selective adsorption of heavy metal ions (e.g., Ni²⁺, Cu²⁺) from solutions containing strong chelating agents (e.g., EDTA).
• Purification of chromium (III) baths by removing copper and nickel ions.

Physical and chemical indicators

CHARACTERISTICS

Indicator

Appearance

Yellow-green spherical beads

Particle size range

0.315-1.25(mm)≥95.0

Functional Group

Copper-Specific Functional Groups

Treatment Precision (Minimum Treatable Concentration)

0.1

Saturated Adsorption Capacity (mmol/g-adsorbent)

>2.42

Applicable pH Range

1.0~6.0

Operational Temperature Range

Room Temperature(RT)

As-supplied form

Chloride type or Sulfate type

Moisture

45 ~ 65

Wet Bulk Density

0.70 ~ 0.80

Wet True Density

1.10 ~ 1.20

Particle size range

0.4 ~ 1.2

Uniformity Coefficient (UC)

≤ 1.60

Attrition-Resistant Sphericity Retention Rate

≥ 90

Sphericity Retention Rate

≥98



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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