Method for manufacturing lithium hydroxide and method using same for manufacturing lithium carbonate
US9598291B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Dec 27, 2012 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | May 13, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/1946
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a method of manufacturing lithium hydroxide and a method of manufacturing lithium carbonate using the same. The method of manufacturing lithium hydroxide includes: preparation of a lithium phosphate aqueous solution including lithium phosphate particles; addition of a phosphate anion precipitation agent to the lithium phosphate aqueous solution; and precipitating a sparingly soluble phosphate compound through a reaction of cations of the phosphate anion precipitation agent with anions of the lithium phosphate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.