Title:
METHOD FOR MANUFACTURING HIGH-PURITY LITHIUM CARBONATE FROM WASTE SAGGER BY USING NEGATIVE ION EXCHANGE
Document Type and Number:
WIPO Patent Application WO/2023/239095
Kind Code:
A1
Abstract:
The present invention provides an optimized method for collecting high-purity lithium carbonate from a lithium-containing composite oxide deposited on an eroded surface of discarded waste sagger. Therefore, the use of the method for manufacturing high-purity lithium carbonate from waste sagger of the present invention is expected to be able to produce high-purity lithium carbonate, usable in the manufacturing of secondary lithium batteries, by recycling discarded waste sagger as well as recycle a positive electrode active material, iron oxide, alumina, silicate, and calcium carbonate that are incidentally obtained in the manufacturing process.
Inventors:
SONG WON HONG (KR)
Application Number:
PCT/KR2023/007296
Publication Date:
December 14, 2023
Filing Date:
May 26, 2023
Export Citation:
Assignee:
KOREASEPARATION CO LTD (KR)
International Classes:
C01D15/08; C22B3/42; C22B7/00
Foreign References:
| KR102290506B1 | 2021-08-18 | |||
| KR102278372B1 | 2021-07-19 | |||
| KR102044331B1 | 2019-11-13 | |||
| KR101283843B1 | 2013-07-08 | |||
| JP6889115B2 | 2021-06-18 |
Attorney, Agent or Firm:
KIM, Jeong Hyeon (KR)
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