Companies have increasingly turned to extracting lithium from brine water rather than mineral ore mainly due to a combination of factors, including:
-
Higher Quality of Lithium: Lithium extracted from brine often results in a purer product, which is desirable for various applications, particularly in batteries.
-
Less Time Consuming: The extraction process from brine can be more efficient than traditional hard rock mining. Brine extraction involves pumping the brine to the surface and allowing it to evaporate, which can take several months, but once operational, it can produce lithium more continuously and at a larger scale compared to mining hard rock.
-
Lower Costs: Brine extraction tends to be less expensive than hard rock mining. The costs associated with mining, crushing, and processing ore can be significant, while brine extraction requires less intensive labor and processing.
-
Resource Availability: Many high-quality lithium brine deposits are located in regions with favorable conditions (like the "Lithium Triangle" in South America), and the continuous discovery of new brine resources has made this method more attractive as some ore deposits may become exhausted.
In summary, while the quality and efficiency of lithium extraction from brine are significant factors, the economic viability and availability of resources also play a crucial role in the shift toward brine extraction.