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Recovery of REEs from leaching liquor of ion-adsorbed-type rare earths ores using ionic liquid based on cooking oil
Li, Fujian1,2,3,4; Xiao, Zhong5; Zeng, Jingyao5; Chen, Jinqing5; Sun, Xiaoqi1,2,4,6
2020-09-01
Source PublicationHYDROMETALLURGY
ISSN0304-386X
Volume196Pages:8
AbstractIonic liquid (IL) based on tetraheptylammonium cooking oil (TC) was used for the first time to recovery rare earth elements (REEs) from leaching liquor of ion-adsorbed-type rare earths ores. Firstly, extraction performances of tetraheptylammonium oleate (TO) and tetraheptylammonium linoleate (TL) type ILs were investigated. It was shown that these ILs had good extraction performances, such as short equilibrium time less than 1 min, good extraction capacity of 0.225 mol/L and high stripping efficiency of 99%. Additionally, REEs extraction occurred in the solutions with high acidity (pH = 0.24) because the cation (C7H15)(4)N+ of TO and TL, could form a strong amine salt with hydrogen ion to decrease acidity of the feed solution. Also, an ion association mechanism of REEs extraction was proposed by FT-IR spectra, H-1 NMR investigation and slope analysis method. Secondly, TC was synthesized in water bath by mixing tetraheptylammonium bromide with saponified peanut oil. Then, comparative study of commercial extractants showed that TC had the highest REEs recovery yield of 100% from the leaching liquor. The sustainability, biocompatibility and non-toxicity, as well as simple synthesis route and well extraction performances make these cooking oil based ILs promising for REEs recovery from the leaching liquor.
KeywordIonic liquids Cooking oil Rare earth Recovery
DOI10.1016/j.hydromet.2020.105449
Language英语
WOS KeywordFATTY-ACID-COMPOSITION ; SYNERGISTIC EXTRACTION ; ELEMENTS ; SEPARATION ; STRATEGY ; ADSORPTION ; METALS ; OLEATE
Funding ProjectNational Key R&D Program of China[2017YFE0106900] ; National Natural Science Foundation of China[21571179] ; Technology Major Project of Ganzhou[2017-8] ; Fujian Program for High-Level Entrepreneurial and Innovative Talents Introduction and Science
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Technology Major Project of Ganzhou ; Fujian Program for High-Level Entrepreneurial and Innovative Talents Introduction and Science
WOS IDWOS:000563452600009
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/41826
Collection中国科学院过程工程研究所
Corresponding AuthorSun, Xiaoqi
Affiliation1.Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China
2.Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn,State Key Lab Multi, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Inst Rare Earth, Ganzhou 341000, Peoples R China
5.Jiangxi Univ Sci & Technol, Ganzhou 341000, Peoples R China
6.China Southern Rare Earth Grp Co Ltd, Ganzhou 341000, Peoples R China
Recommended Citation
GB/T 7714
Li, Fujian,Xiao, Zhong,Zeng, Jingyao,et al. Recovery of REEs from leaching liquor of ion-adsorbed-type rare earths ores using ionic liquid based on cooking oil[J]. HYDROMETALLURGY,2020,196:8.
APA Li, Fujian,Xiao, Zhong,Zeng, Jingyao,Chen, Jinqing,&Sun, Xiaoqi.(2020).Recovery of REEs from leaching liquor of ion-adsorbed-type rare earths ores using ionic liquid based on cooking oil.HYDROMETALLURGY,196,8.
MLA Li, Fujian,et al."Recovery of REEs from leaching liquor of ion-adsorbed-type rare earths ores using ionic liquid based on cooking oil".HYDROMETALLURGY 196(2020):8.
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