{"title":"Extraction of UO2 2+ with N,N-di(2-ethylhexyl)-2,2,3,3,4,4,4- heptafluorobutanamide from Nitric Acid Media","authors":"Y. Lei, W. Cao","doi":"10.12783/issn.1544-8053/14/1/44","DOIUrl":null,"url":null,"abstract":"In this work, N,N-di(2-ethylhexyl)-2,2,3,3,4,4,4-heptafluorobutanamide (DEHFBA) was synthesized for the extraction of UO2 2+ from nitric acid media. IR spectroscopy, 1H-NMR and 19F-NMR were applied to characterize the synthesized DEHFBA. The effects of diluents, extractants, metal ions and nitric acid acidity on the extraction distribution ratios of uranium extraction and extraction rate have been investigated. Under optimum conditions, compared with N,N-di(2-ethylhexyl)butanamide (DEHBA) and tributyl phosphate (TBP), DEHFBA shows much better irradiation stability and extraction performance for UO2 2+ from nitric acid media at low acidity.","PeriodicalId":17101,"journal":{"name":"Journal of Residuals Science & Technology","volume":"1 1","pages":"371-377"},"PeriodicalIF":0.0000,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Residuals Science & Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.12783/issn.1544-8053/14/1/44","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this work, N,N-di(2-ethylhexyl)-2,2,3,3,4,4,4-heptafluorobutanamide (DEHFBA) was synthesized for the extraction of UO2 2+ from nitric acid media. IR spectroscopy, 1H-NMR and 19F-NMR were applied to characterize the synthesized DEHFBA. The effects of diluents, extractants, metal ions and nitric acid acidity on the extraction distribution ratios of uranium extraction and extraction rate have been investigated. Under optimum conditions, compared with N,N-di(2-ethylhexyl)butanamide (DEHBA) and tributyl phosphate (TBP), DEHFBA shows much better irradiation stability and extraction performance for UO2 2+ from nitric acid media at low acidity.
期刊介绍：
The international Journal of Residuals Science & Technology (JRST) is a blind-refereed quarterly devoted to conscientious analysis and commentary regarding significant environmental sciences-oriented research and technical management of residuals in the environment. The journal provides a forum for scientific investigations addressing contamination within environmental media of air, water, soil, and biota and also offers studies exploring source, fate, transport, and ecological effects of environmental contamination.
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