CAS OpenIR
How to recover iodine more efficiently? Extraction of triiodide
Li, Jian1,2; Zhang, Hui1,2,3,4; Xue, Tianyan3,4; Xiao, Qinggui3,4; Qi, Tao1,2,3,4; Chen, Jing5; Huang, Zhaohui1,2
2021-12-15
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume277Pages:8
AbstractAn efficient process was proposed for the recovery of iodine via solvent extraction of triiodide (I-3(-) ) when 21% of I- was oxidized. I-3(-) and I- rather than I-2 were confirmed to be extracted into the organic phase containing Alamine336. It was found that the coordination effect was an important contributor in the extraction process. The extraction rate significantly increased with the increase of the H2O2 dosage, the phase volume ratio and the extractant concentration, whereas it decreased with the increase of equilibrium pH and temperature. The extraction mechanism was established by UV-vis spectra analysis and saturation extraction test. The extracted species were approximately 27% of I-3(-) and 73% of I-, and each of them was bonded with an extractant molecule respectively. High selectivity was also achieved as the molar ratio of I/Cl increased by 600 times after extraction. Compared with the extraction of simple iodide, the novel process exhibited a much higher efficiency (91% vs 63%). Moreover, the novel process also has an advantage over conventional air blowing with less oxidant consumption and milder temperatures.
KeywordIodide Solvent Extraction Triiodide Alamine336
DOI10.1016/j.seppur.2021.119364
Language英语
WOS KeywordRADIOACTIVE IODINE ; REMOVAL ; WATER ; ION ; ADSORPTION
Funding ProjectInnovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM2020 DA02] ; Key Research Program of the Frontier Sciences of CAS[QYZDJ-SSW-JSC021] ; CAS Interdisciplinary Innovation Team ; 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[21978304] ; National Natural Science Foundation of China[51374191] ; Self-deployed Projects of Ganjiang Innovation Academy, Chinese Academy of Sciences[E055A002]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationInnovation Academy for Green Manufacture, Chinese Academy of Sciences ; Key Research Program of the Frontier Sciences of CAS ; CAS Interdisciplinary Innovation Team ; Science and Technology Service Network Initiative of CAS ; National Natural Science Foundation of China ; Self-deployed Projects of Ganjiang Innovation Academy, Chinese Academy of Sciences
WOS IDWOS:000701811900006
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50361
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Hui; Qi, Tao
Affiliation1.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China
2.Jiangxi Prov Key Lab Cleaner Prod Rare Earths, Ganzhou 341000, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
5.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Li, Jian,Zhang, Hui,Xue, Tianyan,et al. How to recover iodine more efficiently? Extraction of triiodide[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2021,277:8.
APA Li, Jian.,Zhang, Hui.,Xue, Tianyan.,Xiao, Qinggui.,Qi, Tao.,...&Huang, Zhaohui.(2021).How to recover iodine more efficiently? Extraction of triiodide.SEPARATION AND PURIFICATION TECHNOLOGY,277,8.
MLA Li, Jian,et al."How to recover iodine more efficiently? Extraction of triiodide".SEPARATION AND PURIFICATION TECHNOLOGY 277(2021):8.
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