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Extraction of Np(Ⅳ) From Nitric Acid Solution With Di(1-Methyl-Heptyl) Methyl Phosphonate
- Source :
- He huaxue yu fangshe huaxue, Vol 44, Iss 2, Pp 178-185 (2022)
- Publication Year :
- 2022
- Publisher :
- Editorial Office of Journal of Nuclear and Radiochemistry, 2022.
-
Abstract
- The extraction of Np(Ⅳ) from nitric acid medium by using di(1-methyl-heptyl) methyl phosphonate diluted in kerosene was investigated. The influences were studied in this research including the contact time, the concentration of DMHMP, HNO3 as well as nitrate and the temperature. Slope analyses indicate that Np(Ⅳ) is coordinated mainly in the form of neutral molecules and the extractant complex is Np(NO3)4·2DMHMP. The value of enthalpy change for the reaction is negative which means that the extraction of Np(Ⅳ) is an exothermic process.
Details
- Language :
- Chinese
- ISSN :
- 02539950
- Volume :
- 44
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- He huaxue yu fangshe huaxue
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.83d12a9fa89b47198c714700ae222341
- Document Type :
- article
- Full Text :
- https://doi.org/10.7538/hhx.2022.YX.2021046