Name: Solvay CYANEX 572
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Solvay CYANEX 572

Highly selective extractant for cobalt(II) over nickel(II) in acidic chloride and sulfate leach solutions.
Excellent phase separation kinetics and low aqueous solubility, minimizing reagent loss and emulsion formation.
Thermally stable and chemically robust under aggressive hydrometallurgical conditions (pH 1–4, up to 60 °C).
Compatible with standard industrial solvent extraction equipment and common diluents (e.g., kerosene, Shellsol® D70).
Low volatility and non-corrosive to carbon steel and stainless-steel infrastructure.

Typical Applications Of Solvay CYANEX 572

Cobalt recovery and purification from mixed Ni–Co laterite and sulfide ore leachates.
Primary cobalt separation in battery metal recycling processes (e.g., spent Li-ion cathode leach solutions).
Refining of cobalt electrolytes prior to electrowinning to meet high-purity specifications (>99.99% Co).
Removal of cobalt impurities from nickel sulfate solutions in nickel-cobalt co-production circuits.
Selective cobalt stripping in multi-stage SX circuits using controlled pH or complexant media.

Chemical Type	Bis(2,4,4-trimethylpentyl)phosphinic acid
Product Form	Liquid concentrate (neat)
Appearance	Clear, colorless to pale yellow liquid
Density (20 °C)	0.89–0.91 g/cm³
Acid Value	135–145 mg KOH/g
Flash Point (Tag Closed Cup)	≥ 140 °C
Solubility in Aliphatic Hydrocarbons	Miscible (e.g., in kerosene or Isopar® L)
Primary Applications	Cobalt/nickel separation in hydrometallurgy

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E-mail: wangxingqiang@ericwchem.com
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