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Standard Lithium completes Li-extraction proof-of-concept at pre-commercial scale

| By Scott Jenkins

Standard Lithium Ltd. (Vancouver, B.C.;, an innovative technology and lithium project development company, announced yesterday that it has successfully completed the start-to-finish proof of concept of its modern lithium processing technology. Successful operation of the technology at pre-commercial continuous scale has directly extracted lithium from brine in Arkansas and produced a purified, concentrated intermediate product (LiCl solution) which has been converted to better than battery quality lithium carbonate final product.

The culmination of the proof-of-concept was to convert and crystallize the LiCl solution produced by the Company’s first-of-its-kind Direct Lithium Extraction (DLE) Demonstration Plant (read more).  The LiCl solution shipped from Arkansas was concentrated further using industry-standard reverse osmosis technology, and then converted at the Company’s SiFT Pilot Plant located in British Columbia, Canada. The lithium carbonate recrystallized as per the SiFT technology and the resulting high-purity lithium carbonate was sent for third party chemical analysis.