Laterite-Nickel ore extraction reagents

Laterite-Nickel ore extraction reagents

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Laterite-Nickel ore extraction reagents is a series extractants which includes D2EHPA, P507 and DY272 etc. P204 is used for early impurity removal: it can extract metal elements such as zinc, copper, calcium, magnesium, cadmium, etc. P507 can extract cobalt. DY272 can be used for extracting magnesium, manganese, etc

Laterite-nickel ore only has low content nickel and cobalt, and has a lot of impurities, the process of getting pure nickel and cobalt is complex. First step should use P204 (D2EHPA) to remove impurities, second use DZ272 to take out cobalt, then wash Mg and Mn ion to left nickel ion.

The active component of DZ272 extractant is bis(2,4,4-trimethylpentyl)phosphinic acid, the content of our DZ272 is 93.23%, it is more than 85% too much, the performance is better than others 272.

Chemical name: Bis-(2,4,4-Trimethylpentyl)-Phosphinic Acid

CAS No.: 83411-71-6

EINECS No.: 280-445-7

Chemical structure formula:

Laterite-Nickel ore extraction reagents
Laterite-Nickel ore extraction reagents

Formula: C16H35O2P

Mol. wt.: 290.42

Performance characteristics:




Colorless oil liquid


Light aromatic



Density (25°C)

0.91-0.925 g/ml3

Viscosity (25°C)

<142 cP (154 mm2/s)

Viscosity (50°C)

<37 cP (40 mm2/s)

Thermal ability


Flash point


Boiling point


Freezing point


Phosphorus content


Solubility Slightly soluble in water, soluble in alkaline water and most organic solvents
Water solubility (pH=2.6)


Water content


Laterite-Nickel ore extraction reagents

Advantage of Laterite-Nickel ore extraction reagents:
1. The effective component of DZ-272 can over 90%, has good extraction ability, high selectivity, low water-soluble ability, easy to be stripped.
2. The extraction step of DZ-272 is less, can save a lot of investment on equipment and hand work, will save a lot of cost.
3. The price of DZ-272 is lower than competitor very much.

Stability of Laterite-Nickel ore extraction reagents:
DZ272 can be worked long time in the appropriate conditions of pH value and temperature, the physical and chemical properties are stably, does not find out obvious phenomenon of be hydrolysis or extraction selectivity is reduced etc.

Loss of dissolution of Laterite-Nickel ore extraction reagents:
We tested the loss of dissolution of DZ272 in aqueous phase conditions of different pH value and aqueous salt concentration, the solubility in aqueous phase is proportional to the pH value, but is inversely proportional to the concentration of aqueous salt, this is same as normal acidic extractant, and the loss of dissolution is less, the dissolution is same as other commercial extractant.

Laterite-Nickel ore extraction reagents

Our metal extractants as below:

  1. P204 (D2EHPA or HDEHP) This is used for first step to remove impurity for laterite nickel ore.
  2. DY319 high efficiency nickel cobalt co-extraction extractant for battery recycle, can take out nickel and cobalt together from Lithium battery electrolyte.
  3. DY272 Nickel cobalt separation extractant, it can take cobalt out from nickel cobalt solution, then leave pure nickel.
  4. DY988N/DY973N/DY902/DY5640 copper solvent extraction reagent.
  5. P507 non-ferrous metal extractant for copper, zinc, cobalt-nickel, cadmium, gold-silver, platinum group metals, rare earths and so on.
  6. DY377 efficient nickel and diamond separation extractant.
  7. DY366 Scandium extractant.
  8. DY316 Lithium extractant.