A study on the fabrication of high purity lithium carbonate by recrystallization of low grade lithium carbonate (저급 탄산리튬의 재결정화를 통한 고순도 탄산리튬 제조에 대한 연구)

Boram Kim (김보람); Kim Dae Weon (김대원); Sung-Ok Hwang (황성옥); Soo-Hoon Jung (정수훈); Dae-Hoon Yang (양대훈)

doi:10.6111/JKCGCT.2021.31.1.016

A study on the fabrication of high purity lithium carbonate by recrystallization of low grade lithium carbonate

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2021, 31(1), pp.16-23
DOI : 10.6111/JKCGCT.2021.31.1.016
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering
Received : January 19, 2021
Accepted : February 8, 2021
Published : February 28, 2021

Boram Kim ¹, Kim Dae Weon ², Sung-Ok Hwang ³, Soo-Hoon Jung ³, Dae-Hoon Yang ³

¹고등기술연구원
²고등기술연구원연구조합
³(주)지엠텍

Accredited

ABSTRACT

Lithium carbonate recovered from the waste solution generated during the lithium secondary battery manufacturing process contains heavy metals such as cobalt, nickel, and manganese. In this study, the recrystallization of lithium carbonate was performed to remove heavy metals contained in the powder and to increase the purity of lithium carbonate. First, theleaching efficiency of lithium carbonate according to pH in the aqueous hydrochloric acid solution was examined, and the effect on the recrystallization of lithium carbonate according to the equivalent and concentration of sodium carbonate was confirmed. As the equivalent and concentration of sodium carbonate increased, the recovery rate of lithium carbonate improved. And the SEM image showed that the crystal shape was changed depending on the reaction conditions with sodium carbonate. Finally, the high purity lithium carbonate of 99.9% or more was recovered by washing with water.

KEYWORDS

Lithium recovery, Lithium carbonate, Recrystallization, Secondary battery, High purity

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* References for papers published after 2023 are currently being built.

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Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

A study on the fabrication of high purity lithium carbonate by recrystallization of low grade lithium carbonate

ABSTRACT

KEYWORDS

Citation status

* References for papers published after 2023 are currently being built.

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

A study on the fabrication of high purity lithium carbonate by recrystallization of low grade lithium carbonate

ABSTRACT

KEYWORDS

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