LITHIUM EXTRACTION FROM BRINE using ion resin

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LITHIUM EXTRACTION FROM BRINE using ion resin ( lithium-extraction-from-brine-using-ion-resin )

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(a) (b) CH2 CH CH2 CH CH2 CH CH2 CH CH2 CH CH2 CH SO -H+ 33 NR +OH- CH2 CH CH2 CH CH2 CH CH2 CH CH2 CH CH2 CH CH2 CH CH2 CH CH2 CH CH2 CH -+ -+ SO-H+ +- +- NR+OH- SO3 H SO3 H 3 NR3 OH NR3 OH 3 Figure 2.21 Chemical structure of resin with (a) sulfonate, (b) quaternary ammonium. However, there are many other types of resins. Some have special functional groups on them, and others contain additional chemical compounds on functional groups. Keeping this in mind, IX resin for lithium extraction is next reviewed. Although IX resins are conventional adsorbents to recover metal ions from solutions, lithium is much more difficult to adsorb selectively than other metal ions such as copper ions. The reason is that, in brine, a much higher concentration of sodium, potassium, calcium and magnesium ions are present (sometimes 100 times as high as lithium concentration in mol/L), and these ions have a higher affinity to cation exchange resins. Despite the unfavorable conditions for ion exchange resins, Dow Chemical in the US invented aluminum loaded resins which can take lithium selectively from brine by the reaction in Equation (2.9),5–7 although the approach remains challenging for practical use. LiCl+NaCl2Al(OH)3 nH2O→NaCl+LiCl2Al(OH)3 nH2O (2.9) Some other investigations have looked at solvent impregnated resins that extract lithium into resins loaded with an organic phase. S. Nishihama et al., for example, studied 1-phenyl-1,3- tetradecanedione (C11phβDK) / tri-n-octylphosphine oxide (TOPO) impregnated resin to separate lithium ions from sodium and potassium ions.8 Solvent impregnated resin method is one of the - 38 -

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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)