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Figure A-6. Lithium recovery flowsheet for Pure Energy Minerals’ Clayton Valley project Pure Energy Minerals (2018) The pre-treatment is designed to remove divalent ions, Ca2+ and Mg2+, by nanofiltration, precipitate the remaining Ca2+ and Mg2+ with pH modification, and remove the precipitates by clarification and/or filtration. The solvent extraction process is selective for lithium versus monovalent cations, so divalent cations must be removed prior to solvent extraction. The solvent extraction process uses an organic phase with extractants that selectively bind with lithium ions. The lithium-loaded organic phase is stripped with sulfuric acid. After solvent extraction, the LiSO4 solution is polished via ion exchange before an electrolysis process that transforms it into a LiOH solution. The final LHM product is generated from evaporative crystallization to remove free water. A.9 Lake Resources Lake Resources Kachi project is in Catamarca, Argentina. The salar brine indicated resource comprises 1 million tons LCE with a concentration of 250 mg/L lithium contained in saturated sediments that extend to 880 m below surface. The project aims to produce 25,500 mt per year of lithium carbonate with DLE via ion exchange (Figure A-7), producing an LiCl-enriched eluate that is converted to Li2CO3 with addition of Na2CO3. After brine is pumped to the surface, it is filtered to remove solids prior to entering the ion-exchange process, where a proprietary ion- exchange sorbent extracts Li+ from the brine by exchanging for an H+. The lithium-loaded sorbent is stripped with dilute HCl to produce an LiCl-enriched eluate, which is further concentrated via reverse osmosis. Addition of Na2CO3 precipitates Li2CO3 that is separated via filtration, dried, and packaged (Lake Resources 2020). The project also considers onsite generation of reagents with NaCl and water converted to NaOH, hydrogen gas, and chlorine gas 38 This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications.PDF Image | Lithium Extraction from Geothermal Brines
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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)