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1 Recovery of Lithium from Geothermal Brine with Lithium-Aluminum 2 Layered Double Hydroxide Chloride Sorbents 3 4 Mariappan Parans Paranthaman1*, Ling Li1, Jiaqi Luo1, Thomas Hoke1, Huseyin Ucar1, Bruce A. 5 Moyer1, and Stephen Harrison2** 6 7 1Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 8 2Rakehill Technologies, LLC, Benicia, CA 94510, USA 9 10 11 ABSTRACT 12 We report a three-stage bench-scale column extraction process to selectively extract lithium 13 chloride from geothermal brine. The goal of this research is to develop materials and processing 14 technologies to improve the economics of lithium extraction and production from naturally 15 occurring geothermal and other brines for energy storage applications. A novel sorbent, lithium 16 aluminum layered double hydroxide chloride (LDH), is synthesized and characterized with X-ray 17 powder diffraction, scanning electron microscopy, inductively coupled plasma optical emission 18 spectrometry (ICP-OES), and thermogravimetric analysis. Each cycle of the column extraction 19 process consists of three steps: 1) loading the sorbent with lithium chloride from brine; 2) 20 intermediate washing to remove unwanted ions; 3) final washing for unloading the lithium 21 chloride ions. Our experimental analysis of eluate vs. feed concentrations of Li and competing 22 ions demonstrates that our optimized sorbents can achieve a recovery efficiency of ~91% and 23 possess excellent Li apparent selectivity of 47.8 compared to Na ions and 212 compared to K 24 ions, respectively in the brine. The present work demonstrates that LDH is an effective sorbent 25 for selective extraction of lithium from brines, thus offering the possibility of effective 26 application of lithium salts in lithium-ion batteries leading to a fundamental shift in the lithium 27 supply chain. 1PDF Image | Recovery of Lithium from Geothermal Brine Li AL
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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 | RSS | AMP |