In-situ capturing of fluorine with CaO for accelerated defluorination roasting of lepidolite in a fluidized bed reactor
文献类型：期刊论文
| 作者 | Li, Jun1; Kong, Jing1; Zhu, Qingshan1,2; Li, Hongzhong1 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2019-07-15 |
| 卷号 | 353页码:498-504 |
| 关键词 | Defluorination roasting Fluidized bed Lepidolite Lithium in-situ capturing of fluorine |
| ISSN号 | 0032-5910 |
| DOI | 10.1016/j.powtec.2019.05.063 |
| 英文摘要 | In-situ capturing of fluorine (F) with CaO in a fluidized bed reactor is proposed to accelerate the defluorination reaction and to improve the lithium extraction from lepidolite ore. Compared to the roasting process without addition of CaO, the Li extraction efficiency is improved by ca. 15 percentage points in the present of CaO during the roasting reaction. And more than 91% of the fluorides volatilized from the lepidolite are captured by CaO particles in the fluidized bed reactor and are converted to CaF2. The formation of CaF2 on the surface of CaO particle is attributed to the generated HF from the lepidolite particles. The in-situ capturing of HF by addition of CaO changes the thermodynamic equilibrium state that benefits the defluorination reaction. Therefore, the in-situ capturing of fluorine with CaO in fluidized bed reactor is a promising method for the de-fluorinate and for the lithium extraction for versatile applications. (C) 2019 Elsevier B.V. All rights reserved. |
| WOS关键词 | LITHIUM-CARBONATE ; EXTRACTION ; WATER ; SPODUMENE ; WASTE ; BRINE ; CO |
| 资助项目 | National Natural Scientific Foundation of China[U1462128] ; National Natural Scientific Foundation of China[91334108] ; State Key Development Program for Basic Research of China[2015CB251402] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000472695100046 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Scientific Foundation of China ; State Key Development Program for Basic Research of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/29994]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li, Jun; Zhu, Qingshan |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jun,Kong, Jing,Zhu, Qingshan,et al. In-situ capturing of fluorine with CaO for accelerated defluorination roasting of lepidolite in a fluidized bed reactor[J]. POWDER TECHNOLOGY,2019,353:498-504. |
| APA | Li, Jun,Kong, Jing,Zhu, Qingshan,&Li, Hongzhong.(2019).In-situ capturing of fluorine with CaO for accelerated defluorination roasting of lepidolite in a fluidized bed reactor.POWDER TECHNOLOGY,353,498-504. |
| MLA | Li, Jun,et al."In-situ capturing of fluorine with CaO for accelerated defluorination roasting of lepidolite in a fluidized bed reactor".POWDER TECHNOLOGY 353(2019):498-504. |
入库方式： OAI收割
来源：过程工程研究所
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