廢리튬이온電池 陽極活物質에서 有機酸을 利用한 코발트 및 리튬의 化學的 浸出
Chemical Leaching of Cobalt and Lithium from the Cathode Active Materials of Spent Lithium-ion Batteries by Organic Acid
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초록
폐리튬이온전지 양극활물질인 LiCoO_2로부터 코발트와 리튬을 회수하기 위한 기초 연구로 환경친화적인 유기산을 이용하여 코발트와 리튬의 침출에 관한 연구를 실시하였다. 주요 실험 변수로는 유기산 종류 및 농도, 과산화수소 농도, 반응 시간 및 온도 그리고 고액농도비 등 코발트와 리튬의 침출에 영향을 미칠 수 있는 인자들에 대하여 고찰하여 최적 조건을 얻고자 하였다. 실험 결과 사용한 유기산중에서 Latic acid가 코발트 및 리튬의 침출율이 99.9%로 가장 우수 하였다. 한편, 구연산을 이용하여 침출 실험한 결과에서 과산화수소의 농도, citric acid의 농도 및 반응온도가 증가함에 따라 코발트 및 리튬의 침출율이 증가하였다. 그러나 고액농도비가 증가함에 따라 침출율은 감소하는 경향을 보였다.
Abstract
Enviromental friendly leaching process for the recovery of cobalt and lithium from the LiCoO_2 was investigated by organic acids as a leaching reagent. The experimental parameters, such as organic acid type, concentrations of leachant and hydrogen peroxide, reaction time and temperature as well as the pulp density were tested to obtain the most effective conditions for the leaching of cobalt and lithium. The results showed that the latic acid was the most effective leaching reagent for cobalt and lithium among the organic acids and was reached about 99.9% of leaching percentage respectively. With the increase of the concentration of citric acid, hydrogen peroxide and temperature, the leaching rate of cobalt and lithium increased. But the increase of pulp density decreased the leaching rate of cobalt and lithium.
참고문헌 (16)
- J. Xu, "A review of processes and technologies for the recycling of lothiumion secondary batteries", J. Power sources, 177, pp.512~527 (2008)
- Dorella, G., "A study of the separation of cobalt from spent Li-ion battery residues", J. Power sources, 170, pp.210~215 (2007)
- Swain, B., "Hydrometallurgical process for recovery of cobalt from waste cathodic active material generated during manufacturing of lithium batteries", J. Power sources, 167, pp.536~544 (2007)
- Zhang, W.P., "Hydrometallurgical process for recovery of metal values from spent lithium-ion secondary batteries", Hydrometallurgy, 47, pp.259~271 (1998)
- Shin, S.M., "Development of a metal recovery process from Li-ion battery wastes", Hydrometallurgy, 79, pp.172~181 (2005)
- Lee, C.K., "Reductive leaching of cathodic active materials from lithium ion battery waste", Hydrometallurgy, 68, pp.5~10 (2003)
- LiLi, "Recovery of cobalt and lithium from spent lithium ion batteries using organic citric acid as leachant", J. of Hazardous Materials, 176, pp.288~293 (2010)
- LiLi, "Environmental friendly leaching reagent for cobalt and lithium recovery from spent lithium-ion batteries", Waste Management, 30, pp.2615~2621 (2010)
- 李喆京, "Oxalic acid溶液에서 LiCoO₂의 選擇浸出", 자원리싸이클링, 11(3), pp.10~16 (2002), 한국자원리싸이클링학회
- Catherine N. Mulligan, "Bioleaching of heavy metals from a low-grade mining ore using Aspergillus niger", J. of Hazardous Materials, 110, pp.77~84 (2004)
- 안재우, "곰팡이균(Aspergillus niger)을 利用한 전자스크랩중 有價金屬의 微生物 浸出 硏究", 자원리싸이클링, 14(5), pp.24~31 (2005), 한국자원리싸이클링학회
- Fozia Anjum, "Leaching of metal ions from black shale by organic acids produced by Aspergillus niger", Applied Clay Science, 47, pp.356~361 (2010)
- Brierley, J.A., "Present and future commercial applications of biohydrometallurgy", Hydrometallurgy, 59, pp.233~239 (2001)
- Geoffrey S. Simate, "The fungal and chemolithotrophic leaching of nickel laterites - Challenges and opportunities", Hydrometallurgy, 10, pp.1~8 (2010)
- Orquidea Coto, "Cobalt and nickel recoveries from laterite tailings by organic and inorganic bio-acids", Hydrometallurgy, 94, pp.18~22 (2008)
- Khin Moh Moh Aung, "Bioleaching of spent fluid catalytic cracking catalyst using Aspergillus niger", Journal of Biotechmology, 116, pp.159~170 (2005)