Pretreatment of deep-sea bacteria for reverse flotation of magnesite tailings: Cleaner production, behavior and mechanism
文献类型:期刊论文
作者 | Yang, Yi1,2,3; Feng, Yali3; Li, Haoran1,2; Xu, Chenglong2,3; Jiang, Shiwei3; Ma, Ruiyu3; Wang, Ben2,3 |
刊名 | SEPARATION AND PURIFICATION TECHNOLOGY |
出版日期 | 2023-02-15 |
卷号 | 307页码:12 |
ISSN号 | 1383-5866 |
关键词 | Magnesite tailings Pretreatment Reverse flotation Deep-sea sediments Silicate bacteria |
DOI | 10.1016/j.seppur.2022.122685 |
英文摘要 | According to the principle of cleaner production, strengthening the selectivity and separation effect of dode-cylamine (DDA) as a conventional reverse flotation agent is an effective way to realize the re-enrichment of magnesite tailings, reduce the cost of agents, recover valuable elements, improve the quality of products and industrialize high value-added utilization. In this study, we designed the technology of microbial pretreatment -reverse flotation of magnesite tailings, and used the deep-sea silicate bacteria SiBY-2 to pretreat magnesite tailings, which enhanced the separation efficiency of magnesite from silicon bearing gangues in the reverse flotation process. The results show that the SiBY-2 enhances the desilication effect of magnesite tailings mainly by secreting organic acids, polysaccharides and proteins, and intensifies the interaction between silicon bearing gangues and the collectors (DDA). Compared with the conventional reverse flotation, the concentrate grade and recovery of the SiBY-2 pretreatment-reverse flotation process is increased by 2.04% and 5.93% respectively, while the utilization rate of DDA is reduced by 9.0%. It is estimated that the production cost of magnesite can be reduced by 900-1350 yen /t, which achieves the purpose of clean production of magnesite high quality products. |
WOS关键词 | OLIVINE DISSOLUTION ; SILICATE ; MICROORGANISMS ; COMMUNITIES ; RECOVERY ; IMPACT ; CU |
资助项目 | China Ocean Mineral Resources R D Association[DY135-B2-15] ; Major Science and Tech- nology Program for Water Pollution Control and Treatment[2015ZX07205-003.] ; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences |
WOS研究方向 | Engineering |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000903550900003 |
资助机构 | China Ocean Mineral Resources R D Association ; Major Science and Tech- nology Program for Water Pollution Control and Treatment ; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences |
源URL | [http://ir.ipe.ac.cn/handle/122111/56575] |
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 Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 3.Univ Sci & Technol Beijing, Sch Civil & Resources Engn, Beijing 100083, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Yi,Feng, Yali,Li, Haoran,et al. Pretreatment of deep-sea bacteria for reverse flotation of magnesite tailings: Cleaner production, behavior and mechanism[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2023,307:12. |
APA | Yang, Yi.,Feng, Yali.,Li, Haoran.,Xu, Chenglong.,Jiang, Shiwei.,...&Wang, Ben.(2023).Pretreatment of deep-sea bacteria for reverse flotation of magnesite tailings: Cleaner production, behavior and mechanism.SEPARATION AND PURIFICATION TECHNOLOGY,307,12. |
MLA | Yang, Yi,et al."Pretreatment of deep-sea bacteria for reverse flotation of magnesite tailings: Cleaner production, behavior and mechanism".SEPARATION AND PURIFICATION TECHNOLOGY 307(2023):12. |
入库方式: OAI收割
来源:过程工程研究所
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