Cleantech Lithium's CEO on How Their DLE Concept Is Both Economic and Environmentally Sustainable
Why It Matters
The technology promises a cost‑effective, low‑water‑use pathway to lithium, crucial for meeting growing battery demand while mitigating environmental risks in arid mining regions.
Key Takeaways
- •DLE extracts lithium selectively, reinjects lithium‑free brine into salar.
- •Reinjection preserves watershed water balance, reducing environmental impact.
- •Direct extraction cuts downstream processing costs for lithium carbonate.
- •Pilot plant in Copiapó, Chile validates technology with real‑brine tests.
- •Partnership with Lanshen chosen for highest lithium recovery efficiency.
Summary
Cleantech Lithium’s chief executive outlined the company’s Direct Lithium Extraction (DLE) platform, a process that selectively pulls lithium from brine and returns the lithium‑depleted solution to the salar, thereby maintaining the natural water balance of the basin.
The CEO emphasized three core advantages: environmental stewardship through brine reinjection, lower capital and operating expenses by bypassing traditional evaporation ponds, and higher purity lithium carbonate output. He cited years of laboratory work and field trials that culminated in a pilot plant near Copiapó, Chile, where the technology consistently recovered lithium at commercial‑grade concentrations.
A key detail was the collaboration with Lanshen, the technology partner whose proprietary solvent system delivered the highest recovery rates in side‑by‑side testing. The pilot not only demonstrated lithium extraction but also completed the downstream conversion to lithium carbonate, proving the end‑to‑end viability of the DLE approach.
If scaled, the DLE model could reshape the lithium supply chain by delivering cheaper, greener lithium for batteries, reducing reliance on water‑intensive evaporation methods, and accelerating the rollout of sustainable energy storage solutions.
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