A METHOD FOR PRODUCING LITHIUM HYDROXIDE FROM LITHIUM-CONTAINING RAW MATERIAL
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United States of America Patent
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Jul 18, 2024
app pub date -
Aug 24, 2021
filing date -
Aug 25, 2020
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Abstract
The present disclosure relates to a lithium hydroxide manufacturing method, which includes: roasting a lithium-containing raw material in sulfuric acid; leaching the roasted lithium-containing raw material to obtain a solution containing lithium sulfate; a first purifying the leaching solution with a pH of 7.1 to 9.5; a second purifying the first purified solution with pH of 9 to 11; and obtaining an aqueous solution of a lithium hydroxide by bipolar electrodialysis of the second purified a solution.
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