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Solvent extraction of Ce(III) and Pr(III) with P507 using SiC foam as a static mixer
Zhang, Ye1,2; Gao, Yong2; Wang, Peng1,2; Na, Duo2; Yang, Zhenming2; Zhang, Jinsong2
Corresponding AuthorZhang, Jinsong(jshzhang@imr.ac.cn)
2022-04-01
Source PublicationJOURNAL OF RARE EARTHS
ISSN1002-0721
Volume40Issue:4Pages:676-686
AbstractExtraction reactor is a major research area of interest within the field of rare earths extraction and separation. SiC foam offers excellent material characteristics as well as three-dimensional (3-D) reticulated structure; however, very little research has been carried out on its application in extraction reactor so far. In this work, a static mixer reactor based on SiC foam was designed and demonstrated to extract and separate Ce(III) and Pr(III) from nitric acid media by using 2-ethylhexyl phosphoric acid mono-2ethylhexyl ester (P507) as extractant. The structure-performance relationship between SiC foam and extraction performance was studied by experiment combined with computational fluid dynamics (CFD) simulation. The experiment data are in good agreement with the simulation results. Contrast experiment by using a Kenics mixer was carried out, and SiC foam shows better extraction and mass transfer performance. Using the optimal structural SiC foam (pore size D = 2.3 mm, open porosity epsilon = 85%, foam length L = 80 mm), high extraction efficiency eta (Pr(III): 94.6%, Ce(III): 88.5%) and separation factor b (2.27) between Ce(III) and Pr(III) is achieved at a high total throughput of 200 mL/min. Besides, overall volumetric mass transfer coefficient KLa of Pr(III) and Ce(III) are 0.519 and 0.378 s(-1)at the residence time tau of 3.6 s, respectively, which reach the high level of microchannel reactors and are better than conventional extractors and other static mixers. SiC foam is found to be applicable as a static mixer for efficient and high-throughput extraction and separation of rare earths. (C)& nbsp;2021 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.
KeywordSiC foam Extraction Static mixer Simulation Rare earths
Funding OrganizationShenyang National Labo-ratory for Materials Science (SYNL) Program for Youth Talent
DOI10.1016/j.jre.2021.02.002
Indexed BySCI
Language英语
Funding ProjectShenyang National Labo-ratory for Materials Science (SYNL) Program for Youth Talent[L2019F45]
WOS Research AreaChemistry
WOS SubjectChemistry, Applied
WOS IDWOS:000791222900005
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/172537
Collection中国科学院金属研究所
Corresponding AuthorZhang, Jinsong
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Ye,Gao, Yong,Wang, Peng,et al. Solvent extraction of Ce(III) and Pr(III) with P507 using SiC foam as a static mixer[J]. JOURNAL OF RARE EARTHS,2022,40(4):676-686.
APA Zhang, Ye,Gao, Yong,Wang, Peng,Na, Duo,Yang, Zhenming,&Zhang, Jinsong.(2022).Solvent extraction of Ce(III) and Pr(III) with P507 using SiC foam as a static mixer.JOURNAL OF RARE EARTHS,40(4),676-686.
MLA Zhang, Ye,et al."Solvent extraction of Ce(III) and Pr(III) with P507 using SiC foam as a static mixer".JOURNAL OF RARE EARTHS 40.4(2022):676-686.
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