Direct Lithium Extraction: Beyond Evaporation Ponds
Direct lithium extraction selects lithium from brines instead of relying on large concentrating ponds. This video explains adsorption beads, ion exchange and membranes, then follows the whole plant through water, energy, waste and conversion into battery materials.
Eramet’s Centenario-Ratones ramp-up is labelled company-reported evidence. South West Arkansas capacity and first-production figures are project targets. A California Energy Commission pilot report shows why real chemistry and equipment constraints matter.
Industrial information, not investment advice. Sources and limitations are recorded in the accompanying fact sheet.
Educational documentary. Not financial or investment advice.
In these topics
Chapters
- The pond problem
- What is actually in brine
- Three ways to grab lithium
- From pilot to plant
- Centenario-Ratones at scale
- Smackover and the US race
- Water and energy compared
- The waste behind the brochure
- From liquid to sellable lithium
- Why a pilot cannot promise profit
- Reading the claims with care
- Does DLE change supply?
Sources and credits
Photo credits (Wikimedia Commons)
- Salar de Atacama lithium evaporation ponds, Chile: NASA Earth Observatory, Operational Land Imager (OLI) by Landsat 8, Public domain - https://commons.wikimedia.org/wiki/File%3ASalar_de_Atacama_Lithium_salt_ponds_2018.jpg
- The Salar de Uyuni, Bolivia - world's largest salt flat, part of the South American lithium triangle: NASA Johnson Space Center, Public domain - https://commons.wikimedia.org/wiki/File%3AThe_Salar_de_Uyuni_in_Bolivia_is_the_world%27s_largest_salt_flat_%28iss074e0319935%29.jpg
- Lithium mining ponds at Bolivia's Salar de Uyuni: Oton Barros (DSR/OBT/INPE), Coordenação-Geral de Observação da Terra/INPE, http://www.dsr.inpe.br, CC0 - https://commons.wikimedia.org/wiki/File%3ALithium_mine_at_Bolivia%C2%B4s_Uyuni_Salt_Flat%2C_on_a_CBERS4_MUX_yesterday%C2%B4s_image_%28cropped%29.jpg
- Salar del Hombre Muerto, Argentina - site of Eramet's Centenario-Ratones lithium plant (satellite view, 2009): NASA Earth Observatory, Public domain - https://commons.wikimedia.org/wiki/File%3ALithium_mine%2C_Salar_del_Hombre_Muerto%2C_Argentina.jpg
- Salar del Hombre Muerto, Argentina - site of Eramet's Centenario-Ratones lithium plant (ground/aerial view, 2024): PierreLht, CC0 - https://commons.wikimedia.org/wiki/File%3ASalar_del_Hombre_Muerto_from_SW.jpg
Primary sources
- Eramet, Centenario-Ratones expansion interview, 1 October 2026.
- Vera et al., Environmental impact of direct lithium extraction from brines, 23 February 2023.
- California Energy Commission, CEC-500-2024-020, March 2024.
- USGS, Fact Sheet 2024-3052, 18 December 2024.
Not regulated financial advice.