Method for dissolving lithium compound, method for manufacturing lithium carbonate, and method for recovering lithium from lithium ion secondary cell scrap
AssigneeJx Metals Circular Solutions Co., Ltd.
InventorsHirotaka Ariyoshi, Isao Tomita, Hiroshi Abe
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Abstract
A method for dissolving a lithium compound according to the present invention includes bringing a lithium compound into contact with water or an acidic solution, and feeding, separately from the lithium compound, a carbonate ion to the water or the acidic solution to produce carbonic acid, and allowing the carbonic acid to react with the lithium compound to produce lithium hydrogen carbonate.
Claims7
A method for dissolving a lithium compound, the method, comprising bringing a lithium compound into contact with water or an acidic solution, and feeding, separately from the lithium compound, a carbonate ion to the water or the acidic solution to obtain a lithium dissolved solution,
- wherein the lithium compound comprises cobalt, aluminum, and at least one of lithium hydroxide, lithium oxide, and lithium carbonate, and
- wherein a pH of the lithium dissolved solution is from 7 to 10.
Dependencies are inferred from the claim text.