DZ272 Nickel cobalt extraction reagent


Chemical name: Bis (2,4,4-trimethylpentyl) phosphinic acid

EINECS No.: 280-445-7

CAS No.: 83411-71-6

Formula: C16H35O2P

Mol. WT.: 290.4

Performance characteristics:




Colorless oil liquid


Light aromatic



Density (25°C)

0.923 g/ml

Viscosity (25°C)

<142 cP (154 mm2/s)

Viscosity (50°C)

<37 cP (40 mm2/s)

Thermal ability


Flash point


Boiling point



Slightly soluble in water, soluble in alkaline water and most organic solvents

Water solubility (pH=2.6)


Character: Colorless or near colorless liquid, light fruity, faintly acid, nontoxic, there is not corrosion property for most steel plastic container.

Usage: Used for extracting Ni, Co, and rare earth elements of gallium (Ga), molybdenum (Mo), germanium (Ge), thulium (Tm), ytterbium (Yb), lutetium (Lu) etc.

According to the metal ion content of the feed liquid, prepare the appropriate extractant concentration, control the range between 10% - 25%, and control the saponification temperature between 40°C-50°C, then stir and extract, clarify and wash, reverse extract and regenerate with the feed liquid in an appropriate ratio, and reuse it repeatedly.

Patent No. 201410053573.0



The effective component of DZ-272 can over 93%, has good extraction ability, high selectivity, low water-soluble ability, easy to be re-extracted.

The extraction step of DZ-272 is less, can save a lot of investment on equipment and hand work, will save much more cost.

The price of DZ-272 is lower than competitor very much.

The separation coefficient of DZ-272 is more than 20 times of P507 on same condition, it is applied to high content Ni-Co solution, also does not has extraction ability for calcium (Ca), can re-extract iron on the condition of low content sulfuric acid.

DZ-272 can dissolve with fat diluent and aromatic diluent fully, and the stability is good, water-soluble ability is low.

DZ-272 can extract Ni-Co in the system of sulfuric acid and chloride, also can extract rare earth elements of gallium (Ga), molybdenum (Mo), germanium (Ge), thulium (Tm), ytterbium (Yb), lutetium (Lu) etc.

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DY272 Nickel Cobalt extractant Nickel Cobalt separation testing Laboratory of Deyuan fine chemicals Deyuan's producing workshop Korean customer visit our manufacturer
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Contact information:

Mr. Jeven Su

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