Title:
LITHIUM EXTRACTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/153816
Kind Code:
A1
Abstract:
The present invention relates to a lithium extraction method, and can provide a lithium extraction method comprising: a step of preparing lithium phosphate containing impurities; a step of dissolving the lithium phosphate and impurities in an acid; a step of obtaining a lithium-containing solution by adding an additive to a solution in which the lithium phosphate and impurities are dissolved in the acid, wherein the additive is a material that simultaneously precipitates phosphate anions and impurities, and the lithium-containing solution obtained by the additive is basic.
Inventors:
CHON UONG (KR)
Application Number:
PCT/KR2020/001372
Publication Date:
August 05, 2021
Filing Date:
January 29, 2020
Export Citation:
Assignee:
CHON UONG (KR)
International Classes:
C22B26/12; C01D7/00; C01D15/08; C22B3/06; C22B7/00
Foreign References:
| KR20180069736A | 2018-06-25 | |||
| KR20160129657A | 2016-11-09 | |||
| KR101405486B1 | 2014-06-13 | |||
| JP5632169B2 | 2014-11-26 | |||
| KR101888181B1 | 2018-08-13 | |||
| KR20200058611A | 2020-05-28 | |||
| KR101363342B1 | 2014-02-19 | |||
| KR101405486B1 | 2014-06-13 | |||
| KR101888181B1 | 2018-08-13 | |||
| JP5632169B2 | 2014-11-26 | |||
| JP5528153B2 | 2014-06-25 |
Other References:
See also references of EP 4098758A4
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