Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Extractive Metallurgy of Lithium

리튬의 제련기술

  • Sohn, Ho-Sang (School of Materials Science and Engineering, Kyungpook National University)
  • 손호상 (경북대학교 신소재공학부)
  • Received : 2021.12.20
  • Accepted : 2022.01.14
  • Published : 2022.06.30
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Abstract

Lithium is the lightest metal and the first metal in the periodic table. Lithium is used in a variety of applications, including the production of organolithium compounds, as an alloying addition to aluminum and magnesium, and as the anode in rechargeable lithium ion batteries especially for electronic devices and electric vehicles. Therefore, lithium is indispensable metal in our daily lives. The use of lithium continues to rise and has increased from about 14,000 tonnes per year worldwide in the 2000 to about 82,200 tonnes in the 2000. However, lithium is a representative rare metal and ranks 32nd among the abundant elements in the earth's crust. This study reviews the current status of the lithium extraction processes as well as the trend in production amount and use. Lithium is extracted by a various methods depending on the type of resources. These extraction methods are essential for the development of new recycling processes that can extract lithium from secondary lithium resources.

리튬은 가장 가벼운 금속으로 주기율표상의 첫 번째 금속이다. 리튬은 유기 화합물부터 알루미늄이나 마그네슘의 합금원소는 물론 전자기기나 전기 자동차용 리튬이온 이차전지의 양극재 등 다양한 용도로 사용되고 있다. 따라서 리튬은 우리 일상생활에서 필수적인 금속이다. 전 세계 리튬의 사용량은 2000년도의 약 14,000 톤에서 2020년에는 약 82,200 톤으로 계속 증가하였다. 그러나 리튬은 지각 중 원소 존재도가 32 번째인 대표적인 희소금속이다. 본 연구에서는 생산량 및 용도와 리튬 제련기술에 대해 고찰하였다. 리튬은 자원이 종류에 따라 다양한 제련법으로 추출된다. 이러한 다양한 리튬의 제련기술은 리튬 2차 자원으로부터 리튬을 추출하는 새로운 재활용 프로세스의 개발에 필수적으로 필요하다.

Keywords

References

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