HPL900——Titanium-Based Lithium Adsorbent (Salt Lake Brine/Precipitated Lithium Mother Liquor)

Product Benefits

(1) The new generation of nanoscale powder pore-making process optimizes the adsorption kinetics and ensures that the adsorbent has abundant nanopore channels and active nanocrystalline grains inside, which substantially increases the lithium diffusion rate. While improving the adsorption capacity, it reduces the influence of temperature on adsorption efficiency, so that the material is still able to maintain excellent performance in a low-temperature environment, and the adsorption rate can still be maintained at a high level even under the condition of temperature reduction.

(2) The adsorption site has a memory effect on lithium ions, even if the content of alkali metal ions, alkaline earth metal ions is 100 times or even 1,000 times the content of lithium ions in the brine or lithium-containing material of the salt lake, the same lithium has a high selectivity, and can maintain a high efficiency separation of sodium, magnesium and other impurity ions. Through an adsorption separation, can reach the de-attached liquid lithium-sodium ratio of more than 2, other impurity ions such as magnesium, potassium, etc. can reach a lower level.

(3) Spherical granulation with good hydraulic flow pattern. At the same time add polymer to make it good anti-scouring performance, stable physical and chemical properties, to ensure that the adsorbent has excellent mechanical strength and toughness, adsorbent breakage rate is low, acid resistance is strong, the annual performance decline rate is less than 10%. It is not easy to plate, clogging and so on, thus effectively avoiding frequent shutdowns for backwashing operations to ensure production.

(4) Lithium resource extraction process is green and environmentally friendly. Only lithium ions in the material liquid are extracted during adsorption, and no other chemical elements are introduced into the material liquid after adsorption, which can be directly discharged back to the salt lake or into the next section; only 1% or lower concentration of acid is used during desorption, which is safe and energy-saving.

Application effects

It is especially suitable for lithium extraction from alkaline materials (pH>8), such as carbonate brine, lithium precipitation mother liquor and other lithium-containing materials.

Fast adsorption rate, high adsorption capacity, high selectivity, excellent low-temperature resistance, annual dissolution loss rate<10%.

Saturated adsorption capacity of 14g/L, recovery rate of more than 90% of the working adsorption capacity of 2-10g / L, desorption of qualified liquid lithium ion concentration can be enriched to more than 5g / L, lithium ions and the main impurity ions (sodium \ magnesium) more than 1 mass ratio.

Physical and chemical indicators

Operating parameter