P204 metal Extractant

P204 metal Extractant

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P204 metal Extractant (D2EHPA or HDEHP) is widly be used for impurity removal for laterite-nickel ore, it has good ability for removing impurities in the process of extract nickel and cobalt, also can extract other metal as Zinc etc.

P204 metal Extractant data
P204 metal Extractant data

Laterite-nickel ore has complex metal ion and low content of nickel and cobalt, normally use Di-(2-ethylhexyl)phosphoric acid (D2EHPA or HDEHP) to remove impurities (most of metals), only left nickel/cobalt/magnesium ion. Use DZ272 to extract cobalt and magnesium, the balance is nickel ion.

P204 is used for early impurity removal: zinc, copper, calcium, magnesium, cadmium and other metal elements can be extracted. P507 extractable cobalt. DY272 can be used to extract magnesium, manganese, etc

P204 (D2EHPA) specification:

Name: Di-(2-ethylhexyl)phosphoric acid (D2EHPA or HDEHP)

IUPAC name: Bis(2-ethylhexyl) hydrogen phosphate.
CAS: 298-07-7
EINECS: 206-056-4
Molar mass: 322.43 g/mol
Content: 95.64%



Appearance Colorless, transparent, viscous liquid
Density (25℃) 0.973 g/ml
Chemical formula C16H35O4P
Viscosity (25℃) 3.47mPa·s
Flash point 206°C
Ignition point 233°C
Freezing point -60°C
Boiling point 209°C (1.33kPa)

P204 metal Extractant also be named (Synonyms) as below:

2-Ethyl-1-Hexanol Hydrogen Phosphate
DI(2-Ethylhexyl) Phosphate
DI(2-Ethylhexy)Phosphoric Acid
Diisooctyl Acid Phosphate
Diisooctyl phosphate
Dioctyl Phosphate
Phosphoric Acid Bis (2-Ethylhexyl) Ester
Phosphoric Acid Di(2-Ethylhexyl) Ester
Phosphoric Acid Dioctyl Ester
Bis(2-ethylhexyl)orthophosphoric acid
Bis(2-ethylhexyl) phosphoric acid
Bis(2-ethylhexyl) phosphate
Bis(2-ethylhexyl) hydro phosphoric acid
Bis(2-ethylhexyl) hydrogen phosphate

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.

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