Method for extracting lithium from solution containing lithium
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United States of America Patent
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Jun 12, 2018
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app pub date -
Dec 28, 2012
filing date -
Jul 31, 2012
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Abstract
Disclosed is a method of extracting lithium from a solution including lithium. The method of extracting lithium from a solution including lithium includes: separating the solution including lithium into a monovalent ion-containing solution and a solution including ions having more than divalence using a separation membrane having a negative charge on its surface; removing impurities from the monovalent ion-containing solution; and precipitating lithium dissolved in the monovalent ion-containing solution into lithium phosphate by adding a phosphorus-supplying material to the monovalent ion-containing solution.
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