| Project/Area Number |
26630467
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Earth system and resources engineering
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| Research Institution | Kansai University |
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Principal Investigator |
Shibata Junji 関西大学, 先端科学技術推進機構, 研究員 (70067742)
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| Co-Investigator(Kenkyū-buntansha) |
MURAYAMA Norihiro 関西大学, 環境都市工学部, 准教授 (90340653)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | リチウムイオン電池 / 湿式処理 / 炭酸塩沈殿 / 非水溶媒 / 炭酸リチウム / 還元培焼 / 乾式処理 / リサイクル / リチウム / 選択的浸出 / 溶媒抽出 / マスキング |
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| Outline of Final Research Achievements |
The aim of this study is to obtain the lithium carbonate with high recovery percentage, for any starting materials of lithium source, from the viewpoint of effective recycling of lithium. We focus on various wet treatments such as a solvent extraction method, a crystallization- stripping method, a selective leaching method and a carbonate precipitation method, as a separation and concentration technology. The effect of roasting under the reduction atmosphere on selective leaching of lithium and the application of nonaqueous solvent to carbonate precipitation method have been investigated, in order to develop an effective recovery process for lithium carbonate. It is clarified that lithium carbonate can be recovered with 80% or more of recovery and purity. The possibility of separation and recovery process for lithium carbonate is found from a series of research results.
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