Rio Tinto studies lithium expansion

Rio Tinto studies lithium expansion
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Rio Tinto’s plan to make lithium treasure from the trash at its Californian borates mine is gathering pace, with the miner studying an expansion to a scale that would generate annual revenues of more than $US60 million at current commodity prices.
Rio announced in 2019 that it would spend $10 million trialling whether it could produce battery grade lithium carbonate from the 90 years of waste rock that has built up at the Boron mine.
The $10 million pilot plant is now producing at a rate of 10 tonnes per year and Rio’s minerals chief executive Sinead Kaufman said it would run throughout this year to inform a study into a commercial plant capable of producing “at least 5000 tonnes per year”.

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