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Title:
METHOD FOR PRODUCING LITHIUM SULFATE AND TRANSITION METAL SULFATE
Document Type and Number:
WIPO Patent Application WO/2023/286684
Kind Code:
A1
Abstract:
Provided is a means for efficiently and economically separating and collecting a transition metal such as nickel or cobalt and lithium from an aqueous sulfate solution that contains the transition metal and lithium as major components. The present invention pertains to a method for producing lithium sulfate, said method being characterized by comprising a step for, from an aqueous solution that contains at least lithium sulfate and a transition metal sulfate as main components, obtaining a slurry containing lithium sulfate as a solid component by concentration and crystallization, and then subjecting the slurry obtained in the concentration crystallization step to solid/liquid separation to separate the slurry into lithium sulfate crystals and the crystallization mother liquor.

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Inventors:
HONDA TOMOHIRO (JP)
ZHANG ANYU (JP)
YOKOTA MASAYUKI (JP)
TAGAMI NOBUYUKI (JP)
Application Number:
PCT/JP2022/026912
Publication Date:
January 19, 2023
Filing Date:
July 07, 2022
Export Citation:
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Assignee:
TODA KOGYO CORP (JP)
International Classes:
C01D15/06; C01G51/10; C01G53/10; C22B3/44; C22B23/00; C22B26/12; H01M10/54
Foreign References:
CN109706318A2019-05-03
CN109734107A2019-05-10
JP2005022887A2005-01-27
JP2019530795A2019-10-24
US10995014B12021-05-04
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