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Rio Tinto produces battery grade lithium in the US – MINING.COM – MINING.com

The miner has proved the process of roasting and leaching waste rock to recover high grades of the metal at its Boron plant in California.

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An initial small-scale trial in 2019 successfully proved the process of roasting and leaching waste rock to recover high grades of the metal, vital in the production of batteries that power electric vehicles (EVs) and most high tech electronics.
“We figured out how to chemically process nearly a centurys worth of mining waste to unearth battery-grade lithium”
Rio Tinto
Rios discovery of lithium at Boron was a fluke. The miner was actually testing Borons tailings to see whether the presence of gold…

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