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SEPARATION OF LITHIUM FROM BRINES

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

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In chlorination process, which is not widely used, the mineral is roasted with chlorine gas or hydrochloric acid at 880-1100 oC and lithium chloride is produced as a final product [32]. 1.4 Conventional lithium separation processes from brines There are five important brines in which lithium is produced commercially in all over the world. These sources can be listed as; Clayton Valley (Nevada), Salton Sea (California), Searless Lake (California) in North America and Salar da Atacama (Chile), Salar de Hombre Muerto (Argentina) in South America. Among these lithium sources Salar de Atacama has the highest lithium production with two plants; SQM and Chemetall (Rockwood Lithium) [33], [34]. The plant on Humbre Muerto was partly closed in 1999 due to the price reduction of SQM. Olarez Salina which is placed near Humbre Muerto currently takes investment by Orocobre, which is the largest lithium resource developer in Argentina [35]. Among those plants, Simbol Materials which is on Salton Sea in California is the newest one and it has started its production in September 2011 [36]. Although Bolivia has the largest lithium reserves in brines with 9 million tons capacity, there is no production of lithium due to lack of infrastructure in high hills where those resources are located [37]. China also declared to produce lithium from the high lakes in Tibet like Zabuye Lake and continues its research on the field since 2002 [38]. Due to the dilute concentration of lithium in even the most favorable brine, solar evaporation of the brine to further concentrate it has been a necessary first step in all of the world’s current lithium brine production. After the evaporation of excess water in large pools, suitable precipitation agents are employed and unwanted salts are separated. Thereafter, lithium is acquired in desired purity. Currently all the conventional processes utilize evaporation and precipitation techniques. The other techniques like ion-exchange, adsorption or membrane separation does not take place in the processes. On the other hand, it is known that POSCO which is located in South Korea will start production of lithium from seawater by 2015 [39]. Due to 8

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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.

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