SEPARATION OF LITHIUM FROM BRINES

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SEPARATION OF LITHIUM FROM BRINES ( separation-lithium-from-brines )

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spinel type and sodium manganese oxide was in birnessite type. In the same study, the selectivity of the adsorbents towards lithium ions with foreign ions like sodium, potassium and magnesium was investigated. The selectivity order of the ions can be listedasLi+ K+ > Mg2+ > Ca2+ . In Chitrakar’s adsorbent synthesis procedure - MnOOH and LiOH were autoclaved at 120 oC for 1 day. LiMn2O4 was taken as a product and dried at 60 oC. After that it was placed into an oven operating at 400 oC for 4 h, Li1.6Mn1.6O4 was taken as an intermediate final product. Thereafter, 1.5 g of Li1.6Mn1.6O4 was mixed with 2 L 0.5 M HCl solution and H1.6Mn1.6O4 was taken as a final product. The same synthesis also described for reflux method with same procedure except that the reaction took place for 8 hours. Adsorbents which are synthesized by using an autoclave gave slightly higher capacity values than the adsorbents synthesized by reflux method. Another important study about lithium manganese adsorbents were conducted by Yoshizuka et al. [78]. In their first paper which was published in 2002, they made the synthesis of the adsorbents by using Mn3O4 and LiOH as reactants. Li/Mn ratio was adjusted to 0.5 and the synthesis was done in two steps, one of which was at 425 oC, 5 h and the other was 500 oC, 5 h in electrical oven. The resulting product was 22

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One project is converting salt (brine) based water conditioners to simultaneously produce power.

In addition, there are many opportunities to extract Lithium from brine (salt lakes, groundwater, and producer water).

Salt water or brine are huge sources for lithium. Most of the worlds lithium is acquired from a brine source. It's even in seawater in a low concentration. Brine is also a byproduct of huge powerplants, which can now use that as an electrolyte and a huge flow battery (which allows storage at the source).

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