CAS OpenIR
Efficient Removal of Fluoride by Complexation Extraction: Mechanism and Thermodynamics
Li, Jian1,2,3; Zhang, Hui1,2; Zhang, Jingjing1,2,3; Xiao, Qinggui1,2; Du, Xuan1,2; Qi, Tao1,2
2019-08-06
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Volume53Issue:15Pages:9102-9108
AbstractA complexation extraction system was designed to develop a new process for the efficient removal of fluoride from solutions, such as zinc or copper electrolytes or wastewater derived from flue gas. The effects of the boron fluoride molar ratio, organic phase composition, initial pH, temperature, and phase volume ratio on the extraction efficiency were investigated. The extraction efficiency was found to increase with the increase in the boron fluoride molar ratio, Alamine336 concentration, and phase volume ratio, whereas it decreased with the increase in temperature. For the simulated electrolyte or wastewater derived from flue gas, the majority of metallic ions were insensitive to the extraction, with the exception of Al3+ and Fe3+. Fluoride decreased from 5 g/L to 0.05 g/L after two-stage cross-flow extraction alone; with an extraction efficiency of 99%. Both the stripping and cycling properties were excellent when sodium hydroxide was employed as the stripping reagent. Furthermore, the loading capacity was 43.4 g/L, and increased by four times, when boric acid was added. This novel process implies a wide range of potential applications, such as the removal of unwanted fluoride ions from various high-fluoride polluted solutions and the simplification of brine phase diagram.
DOI10.1021/acs.est.9b02369
Language英语
WOS KeywordAQUEOUS-SOLUTIONS ; ANIONS ; NANOCOMPOSITE ; WATER ; ACID
Funding ProjectKey Research Program of the Frontier Sciences of CAS[QYZDJ-SSW-JSC021] ; Science and Technology Cooperation for Yunnan Provinces[2016IB002] ; CAS[2016IB002] ; Science and Technology Service Network Initiative of CAS[KFJ-SW-STS-148] ; Science and Technology Service Network Initiative of CAS[KFJ-STS-QYZD-011] ; National Natural Science Foundation of China[21506233] ; National Natural Science Foundation of China[51402303] ; National Natural Science Foundation of China[21606241] ; National Natural Science Foundation of China[51374191]
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
Funding OrganizationKey Research Program of the Frontier Sciences of CAS ; Science and Technology Cooperation for Yunnan Provinces ; CAS ; Science and Technology Service Network Initiative of CAS ; National Natural Science Foundation of China
WOS IDWOS:000480370600065
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30579
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Hui
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Jian,Zhang, Hui,Zhang, Jingjing,et al. Efficient Removal of Fluoride by Complexation Extraction: Mechanism and Thermodynamics[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019,53(15):9102-9108.
APA Li, Jian,Zhang, Hui,Zhang, Jingjing,Xiao, Qinggui,Du, Xuan,&Qi, Tao.(2019).Efficient Removal of Fluoride by Complexation Extraction: Mechanism and Thermodynamics.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(15),9102-9108.
MLA Li, Jian,et al."Efficient Removal of Fluoride by Complexation Extraction: Mechanism and Thermodynamics".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.15(2019):9102-9108.
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