CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Distribution and occurrence of lithium in high-alumina-coal fly ash
Hu, Pengpeng1,2; Hou, Xinjuan1,2; Zhang, Jianbo1; Li, Shaopeng1; Wu, Hao3; Damo, Anne Juul3; Li, Huiquan1,2; Wu, Qisheng4; Xi, Xinguo4
2018-03-15
Source PublicationINTERNATIONAL JOURNAL OF COAL GEOLOGY
ISSN0166-5162
Volume189Pages:27-34
AbstractHigh-alumina-coal fly ash (HAFA) with a high Li content is regarded as a potential resource for Li production. To support the development of Li recovery technology from HAFA, the distribution and modes of occurrence of Li in HAFA were investigated. HAFA was separated into magnetic particles, glass, and mullite + corundum + quartz (MCQ) using an add-alkali combination method. 79-94% of the Li was found in glass, with the remaining 5-16% and < 5% of Li in MCQ and magnetic particles, respectively. Chemical state imaging of Li in HAFA, magnetic particles, and MCQ was obtained using time-of-flight secondary ion mass spectrometry (TOF-SIMS). Lithium was found to be relatively uniformly distributed in the HAFA particles and strongly correlated with Al and Si. Possible formation pathways of Li in the glass phase were proposed. The energy differences between reactants and products (Delta E) calculated using the generalized gradient approximation (GGA) method indicated that Li occurred in Q(3)(0Al) and Q(3)(1Al) structures by reacting with Q(4)(0Al) and Q(4)(1Al). Based on the experimental and simulation results, we propose extracting Li during the pre-desilication process by dissolving the glass phase.
KeywordHigh-alumina-coal Fly Ash Lithium Mode Of Occurrence Tof-sims Molecular Simulation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.coal.2018.02.011
Indexed BySCI
Language英语
WOS KeywordINNER-MONGOLIA ; TOF-SIMS ; JUNGAR COALFIELD ; CHINA ; GEOCHEMISTRY ; ACTIVATION ; EXTRACTION ; MINERALOGY ; DIGESTION ; RECOVERY
WOS Research AreaEnergy & Fuels ; Geology
WOS SubjectEnergy & Fuels ; Geosciences, Multidisciplinary
Funding OrganizationNational Key R&D Program of China(2017YFB0603102) ; Shanxi Province Coal Based Low-carbon Technology Major Projects(MC2016-05) ; Jiangsu Collaborative Innovation Center for Ecological Building Materials and Environmental Protection Equipments/Yancheng Institute of Technology/Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province(YCXT201612)
WOS IDWOS:000430765800003
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24435
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, CAS Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100090, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Tech Univ Denmark, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark
4.Yancheng Inst Technol, Yancheng 224051, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Hu, Pengpeng,Hou, Xinjuan,Zhang, Jianbo,et al. Distribution and occurrence of lithium in high-alumina-coal fly ash[J]. INTERNATIONAL JOURNAL OF COAL GEOLOGY,2018,189:27-34.
APA Hu, Pengpeng.,Hou, Xinjuan.,Zhang, Jianbo.,Li, Shaopeng.,Wu, Hao.,...&Xi, Xinguo.(2018).Distribution and occurrence of lithium in high-alumina-coal fly ash.INTERNATIONAL JOURNAL OF COAL GEOLOGY,189,27-34.
MLA Hu, Pengpeng,et al."Distribution and occurrence of lithium in high-alumina-coal fly ash".INTERNATIONAL JOURNAL OF COAL GEOLOGY 189(2018):27-34.
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