SEPARATION OF LITHIUM FROM BRINES

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with HCl solution to extract lithium. Afterwards, the elution solution with 160 ppm lithium concentration was fed to DIAION SK110 ion exchanger to separate Mg, Ca, Sr and Mn. After that, the brine was fed to an ion exchange column filled with 1- phenyl-1,3-tetradecanedione to separate manganese and magnesium further and finally reache 900 ppm Li concentration. Afterwards the water was evaporated and by addition of ammonium carbonate, lithium carbonate was precipitated. The final product acquired has a purity of 99.9 % and the total process had an efficiency value of 56 %. Kima et al. investigated the structure of lithium manganese oxide in 2003 and tried to impregnate Ti and Fe into the structure [64]. In this study, solid-solid reaction system was chosen and lithium carbonate was used as a lithium source while manganese carbonate was used as an manganese source. For iron and titanium resource, FeOOH and TiO2 were employed. In this article no separation experiments were done but the crystal systems of the resulting products were described and selectivity of the new adsorbents were discussed. In 2006, Wang et al. studied the parameters affecting the capacity of the lithium manganese oxide adsorbents synthesized by solid-solid method. They analyze the effect of Li/Mn ratio, heating time, heating temperature, precursors, leaching conditions etc. [82]. They used manganese carbonate as single manganese source, lithium carbonate and lithium hydroxide as lithium sources. In their conclusion, it was stated that, LiOH and MnCO3 pair gave highest capacity values and as Li/Mn ratio increases lithium adsorption capacity of the adsorbents increase also. It was found out that when LiOH and MnCO3 were used and Li/Mn ratio was adjusted to 1, adsorbents worked most efficiently and give 23 mg/g capacity value. Wang et al. published another article in 2008 and they synthesized the adsorbents with MnCl2, LiOH and H2O2 by hydrothermal process [83]. They performed the adsorption experiments under constant pH by using an ammonium chloride- ammonia buffer and investigated the effect of ionic strength and temperature on capacity. It was found out that ionic strength decreases the efficiency of the adsorption process, which was explained by the formation of an ionic layer on adsorption surface that increases the diffusion resistance of lithium ions into the 24

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Product and Development Focus for Infinity Turbine

ORC Waste Heat Turbine and ORC System Build Plans: All turbine plans are $10,000 each. This allows you to build a system and then consider licensing for production after you have completed and tested a unit.

Redox Flow Battery Technology: With the advent of the new USA tax credits for producing and selling batteries ($35/kW) we are focussing on a simple flow battery using shipping containers as the modular electrolyte storage units with tax credits up to $140,000 per system.

Our main focus is on the salt battery. This battery can be used for both thermal and electrical storage applications.

We call it the Cogeneration Battery or Cogen Battery.

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).

We welcome any business and equipment inquiries, as well as licensing our turbines for manufacturing.

CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)