Microbial pretreatment of microfine-grained low-grade zinnwaldite tailings for enhanced flotation to recover lithium and rubidium resources
文献类型：期刊论文
| 作者 | Li, Haosheng1; Feng, Yali1; Li, Haoran2,3; Liu, Zhaowang1 |
| 刊名 | MINERALS ENGINEERING
 |
| 出版日期 | 2022-05-15 |
| 卷号 | 181页码:9 |
| 关键词 | Microbial pretreatment Zinnwaldite Tailings Silicate bacteria Mixed collectors Flotation |
| ISSN号 | 0892-6875 |
| DOI | 10.1016/j.mineng.2022.107503 |
| 英文摘要 | The accumulation of large amounts of refractory zinnwaldite in tailings pond in Hunan (China) implies a waste of the rare lithium and rubidium resources and also induces serious environmental problems. In the present study, the microbial pretreatment was introduced prior to the desliming and flotation processes. The silicate bacteria "LM-1 ", isolated from deep-sea sediments, was used to decompose and erode the minerals. This procedure will solve the problem of difficult sorting of the tailings in a more efficient and environmentally friendly way. Through flotation tests and mineral surface analysis, we derived the optimum pretreatment and flotation solution and we discuss application processes that will enhance the flotation effectiveness. The test results showed that the pretreatment with "LM-1 " caused an enlargement of the cleavage plane {001} on the surface of the ore grains and an increase of the content of the cleavage plane {001} throughout the raw ore. Therefore, the adsorption capacity of the collector increased, and the selectivity was enhanced, which largely improved the floatability of the zinnwaldite. A good index of 2.89% Li2O grade with 71.68% recovery and 0.59% Rb2O grade with 80.42% recovery was obtained for the concentrate. Compared to conventional flotation processes, the more efficient release of potassium and desilication through "LM-1 " not only avoids the high energy consumption and serious sliming caused by fine grinding of minerals, but also effectively improves the separation results. |
| WOS关键词 | MIXED ANIONIC/CATIONIC COLLECTORS ; ADSORPTION MECHANISM ; EXTRACTION ; OPTIMIZATION ; SEPARATION ; BACTERIA ; MINERALS ; QUARTZ ; WASTE ; AMINE |
| 资助项目 | Long term special project for National[JS-KTHT-2019-01] |
| WOS研究方向 | Engineering ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000791269000002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Long term special project for National |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/53244]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Feng, Yali; Li, Haoran |
| 作者单位 | 1.Univ Sci & Technol Beijing, Civil & Resource Engn Sch, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Haosheng,Feng, Yali,Li, Haoran,et al. Microbial pretreatment of microfine-grained low-grade zinnwaldite tailings for enhanced flotation to recover lithium and rubidium resources[J]. MINERALS ENGINEERING,2022,181:9. |
| APA | Li, Haosheng,Feng, Yali,Li, Haoran,&Liu, Zhaowang.(2022).Microbial pretreatment of microfine-grained low-grade zinnwaldite tailings for enhanced flotation to recover lithium and rubidium resources.MINERALS ENGINEERING,181,9. |
| MLA | Li, Haosheng,et al."Microbial pretreatment of microfine-grained low-grade zinnwaldite tailings for enhanced flotation to recover lithium and rubidium resources".MINERALS ENGINEERING 181(2022):9. |
入库方式： OAI收割
来源：过程工程研究所
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