中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
DOI10.1016/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
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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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