METHOD FOR PREPARING HIGH-PURITY LITHIUM SULFATE FROM WASTE SAGGAR

Title:

METHOD FOR PREPARING HIGH-PURITY LITHIUM SULFATE FROM WASTE SAGGAR

Document Type and Number:

WIPO Patent Application WO/2023/239094

Kind Code:

A1

Abstract:

The present invention provides an optimized method for recovering high-purity lithium sulfate from a lithium-containing composite oxide deposited on the erosion surface of discarded waste saggar. Therefore, a method for preparing high-purity lithium sulfate from waste saggar, of the present invention, is expected to: recycle discarded waste saggar so that high-purity lithium sulfate that can be used in the manufacture of a lithium secondary battery can be prepared; and enable recycling of cathode active materials, iron oxide, alumina, silicate and calcium carbonate, which are obtained incidentally during preparation.

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Inventors:

SONG WON HONG (KR)

Application Number:

PCT/KR2023/007293

Publication Date:

December 14, 2023

Filing Date:

May 26, 2023

Export Citation:

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Assignee:

KOREASEPARATION CO LTD (KR)

International Classes:

C01D15/06; C01D5/02

Foreign References:

KR102290506B1	2021-08-18
KR102278372B1	2021-07-19
KR102205442B1	2021-01-20
CN110040751A	2019-07-23
US20210222270A1	2021-07-22
KR102525088B1	2023-04-24

Attorney, Agent or Firm:

KIM, Jeong Hyeon (KR)

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