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Enhanced roasting of lepidolite for high defluorination efficiency in a fluidized bed reactor
Li, Jun1; Kong, Jing1; Zhu, Qingshan1,2; Li, Hongzhong1
2020-10-01
Source PublicationPARTICUOLOGY
ISSN1674-2001
Volume52Pages:28-35
AbstractDefluorination roasting of lepidolite ore in a fluidized bed reactor has been proposed for improving the extraction efficiency of lithium. In this paper, a vacuum was introduced to the fluidized bed reactor, which significantly improved the defluorination efficiency of lepidolite particles. This improvement could be attributed to an increase in the H2O/HF ratio. The highest defluorination rate for the lepidolite particles was obtained in the fluidized bed reactor under vacuum. The rate in the vacuum reactor was 1.5-2 times that in a fixed bed reactor or conventional fluidized bed reactor. The defluorination efficiency of the lepidolite particles also improved and the consumption of steam was greatly reduced by addition of coal char. This enhancement was mainly attributed to changes in the structures of the reduced lepidolite particles. This defluorination roasting method for high lithium extraction with low water steam consumption is a promising method for lithium ore treatment. (C) 2020 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
KeywordVacuum fluidized bed Defluorination roasting Lepidolite Lithium
DOI10.1016/j.partic.2019.12.002
Language英语
WOS KeywordLITHIUM EXTRACTION ; BETA-SPODUMENE ; CHLORINATION ; CARBONATE ; IRON ; CO ; ALUMINUM ; KINETICS ; RECOVERY ; SODIUM
Funding ProjectNational Natural Scientific Foundation of China[21978300] ; National Natural Scientific Foundation of China[U1462128] ; National Natural Scientific Foundation of China[91334108] ; State Key Development Program for Basic Research of China (973 Program)[2015CB251402]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Chemical ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Scientific Foundation of China ; State Key Development Program for Basic Research of China (973 Program)
WOS IDWOS:000543457200003
PublisherELSEVIER SCIENCE INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/41248
Collection中国科学院过程工程研究所
Corresponding AuthorZhu, Qingshan
Affiliation1.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
Recommended Citation
GB/T 7714
Li, Jun,Kong, Jing,Zhu, Qingshan,et al. Enhanced roasting of lepidolite for high defluorination efficiency in a fluidized bed reactor[J]. PARTICUOLOGY,2020,52:28-35.
APA Li, Jun,Kong, Jing,Zhu, Qingshan,&Li, Hongzhong.(2020).Enhanced roasting of lepidolite for high defluorination efficiency in a fluidized bed reactor.PARTICUOLOGY,52,28-35.
MLA Li, Jun,et al."Enhanced roasting of lepidolite for high defluorination efficiency in a fluidized bed reactor".PARTICUOLOGY 52(2020):28-35.
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