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Standard Lithium Provides Project Update
January 20, 2022 - 01:00PM
GlobeNewswire Inc.

Standard Lithium Ltd. (“Standard Lithium” or the “Company&rdquo (TSXV: SLI) (NYSE American: SLI) (FRA: S5L), an innovative technology and lithium project development company, today offered an update on several project and other related developments.

SiFT Lithium Carbonate Plant
The ‘SiFT’ lithium carbonate plant was installed at the site in Q3 2021 (see September 1st news release) and has been successfully commissioned and used to produce battery quality lithium carbonate at the plant. The lithium carbonate was produced at the SiFT Plant in a single crystallization stage (contrasting with multiple stages in a typical process). The crystals were washed twice using hot deionized water to attain battery-quality (>99.83% purity) lithium carbonate. This is the first of its kind demonstration of a continuous Direct Lithium Extraction (DLE) plant being operated at scale, producing a concentrated lithium chloride intermediate product and directly converting to battery quality lithium carbonate in a single crystallization step. Completion of this phase of work is another important milestone for the Company and its technology-driven approach to development.

The current iteration of the Company’s proprietary LiSTR DLE demonstration plant in El Dorado, Arkansas also uses a novel osmotically assisted High Pressure Reverse Osmosis (HPRO) unit to concentrate the LiCl solution prior to carbonation. This HPRO unit was successfully integrated into the plant and has been operating according to design criteria since September 2021 and consistently producing LiCl solutions containing approximately 7,000 mg/L lithium.

First Commercial Plant Design and Planning
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