SEPARATION OF LITHIUM FROM BRINES

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

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In order to enrich the lithium content in the eluted solution and decrease the foreign ion content, the overall process was repeated once more with a feed solution of 5 L prepared at a composition of elution solution given in Table 3.44. The new feed solution was prepared in 0.5 M HCl, and the pH of the solution was adjusted to 9 by ammonia addition. After 5 L was fed to the column in batchwise, the column was swept by 4 L of tap water continuously and lastly eluted by 350 ml 0.5 M HCl solution. The compositions of the solutions in each step are shown in Table 3.45. Table 3.45 The second adsorption-sweeping-elution process composition with the feed solution having concentration of elution process in Run 18 The composition The new feed solution Elution solution conc. Change of concentration Li (ppm) 29 310 Increased by 10.7 folds Na (ppm) 152 151 No change K (ppm) 79 38 Decreased by 2 folds Mg (ppm) 490 1076 Increased by 2.2 folds Table 3.45 shows that an additional adsorption-sweeping-elution cycle increases the composition of lithium by 10.7 folds, while decreasing the potassium content by 2 folds and increase the magnesium content by 2.2 folds. The composition of sodium does not change. Increase in magnesium concentration and no change in sodium concentration was attributed to the tap water used in sweeping process. The sodium and magnesium content in tap water probably hinder the desorption of those ions. The low potassium content in tap water (3.1 ppm) explains the decrease in the potassium composition with respect to feed solution. 115

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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)