Knowledge Management System Of Institute of process engineering,CAS
| Lithium recovery from lepidolite roasted with potassium compounds | |
| Su, Hui1,2,3; Ju, Jiaying4; Zhang, Jian1,2,3; Yi, Aifei1,2; Lei, Ze4; Wang, Lina1,2; Zhu, Zhaowu1,2; Qi, Tao1,2 | |
| 2020 | |
| Source Publication | MINERALS ENGINEERING
 |
| ISSN | 0892-6875 |
| Volume | 145Pages:9 |
| Abstract | Three different potassium compounds, namely K2SO4, KOH, and K2SO4 + KOH, were used as additives to extract lithium from lepidolite by roasting and water leaching. The effect of the additive/ore mass ratio on the extraction of Li, K, Si, and Al was compared among the different additives. Efficient extraction of Li and K was obtained by roasting lepidolite with the K2SO4 and K2SO4 + KOH additives. The Li extraction and K recovery were 92.78% and 81.72% respectively under the optimum conditions: K2SO4/KOH/ore mass ratio of 1:0.5:1, roasting at 900 degrees C for 2 h, and water leaching at 90 degrees C for 3 h with a liquid to solid (L/S) ratio of 5:1. The decomposition process of lepidolite with different additives was explored. The results indicate that lepidolite is decomposed into kalsilite when roasted with KOH and mixed phases of kalsilite, leucite, K2SO4, and LiKSO4 when roasted with K2SO4 and K2SO4 + KOH additives. Li in the lepidolite is converted into soluble LiKSO4, facilitating its extraction. The addition of KOH contributes to the formation of kalsilite, which makes K recovery easier. |
| Keyword | Lepidolite Lithium K2SO4 KOH Roasting Water leaching |
| DOI | 10.1016/j.mineng.2019.106087 |
| Language | 英语 |
| WOS Keyword | EXTRACTION ; BRINE |
| Funding Project | National Key R&D Program of China[2018YFC1900500] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC021] ; National Natural Science Foundation of China[21606241] ; National Natural Science Foundation of China[51804289.] ; National Natural Science Foundation of China[51774260] ; CAS Interdisciplinary Innovation Team |
| WOS Research Area | Engineering ; Mineralogy ; Mining & Mineral Processing |
| WOS Subject | Engineering, Chemical ; Mineralogy ; Mining & Mineral Processing |
| Funding Organization | National Key R&D Program of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; CAS Interdisciplinary Innovation Team |
| WOS ID | WOS:000498752100026 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/38350 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhu, Zhaowu |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 101408, Peoples R China 4.China Univ Min & Technol, Beijing 100083, Peoples R China |
| Recommended Citation GB/T 7714 | Su, Hui,Ju, Jiaying,Zhang, Jian,et al. Lithium recovery from lepidolite roasted with potassium compounds[J]. MINERALS ENGINEERING,2020,145:9. |
| APA | Su, Hui.,Ju, Jiaying.,Zhang, Jian.,Yi, Aifei.,Lei, Ze.,...&Qi, Tao.(2020).Lithium recovery from lepidolite roasted with potassium compounds.MINERALS ENGINEERING,145,9. |
| MLA | Su, Hui,et al."Lithium recovery from lepidolite roasted with potassium compounds".MINERALS ENGINEERING 145(2020):9. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment