Distribution and occurrence of lithium in high-alumina-coal fly ash

doi:10.1016/j.coal.2018.02.011

CORC > 过程工程研究所 > 中国科学院过程工程研究所 > 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, Pengpeng 1,2; Hou, Xinjuan 1,2; Zhang, Jianbo 1; Li, Shaopeng 1; Wu, Hao 3; Damo, Anne Juul 3; Li, Huiquan 1,2; Wu, Qisheng 4; Xi, Xinguo 4
刊名	INTERNATIONAL JOURNAL OF COAL GEOLOGY
	2018-03-15
卷号	189 页码:27-34
关键词	High-alumina-coal Fly Ash Lithium Mode Of Occurrence Tof-sims Molecular Simulation
ISSN号	0166-5162
DOI	10.1016/j.coal.2018.02.011
文献子类	Article
英文摘要	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.
WOS关键词	INNER-MONGOLIA ; TOF-SIMS ; JUNGAR COALFIELD ; CHINA ; GEOCHEMISTRY ; ACTIVATION ; EXTRACTION ; MINERALOGY ; DIGESTION ; RECOVERY
WOS研究方向	Energy & Fuels ; Geology
语种	英语
WOS记录号	WOS:000430765800003
资助机构	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)
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/24435]
专题	过程工程研究所_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
推荐引用方式 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.