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
发表期刊INTERNATIONAL JOURNAL OF COAL GEOLOGY
ISSN0166-5162
卷号189页码:27-34
摘要High-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.
关键词High-alumina-coal Fly Ash Lithium Mode Of Occurrence Tof-sims Molecular Simulation
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1016/j.coal.2018.02.011
收录类别SCI
语种英语
关键词[WOS]INNER-MONGOLIA ; TOF-SIMS ; JUNGAR COALFIELD ; CHINA ; GEOCHEMISTRY ; ACTIVATION ; EXTRACTION ; MINERALOGY ; DIGESTION ; RECOVERY
WOS研究方向Energy & Fuels ; Geology
WOS类目Energy & Fuels ; Geosciences, Multidisciplinary
项目资助者National 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记录号WOS:000430765800003
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24435
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.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
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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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