Extraction of uranyl nitrate from concentrated aqueous salt solutions by tributyl phosphate
Equations have been proposed for describing isotherms of extraction of uranyl nitrate from concentrated aqueous salt solutions by neat tri-n-butyl phosphate, with account taken of variations of activity coefficients of the components in organic phase over a wide range of its compositions. The constants of extraction equilibria, calculated for a standard hypothetical 1 M aqueous solution of uranyl nitrate and the state of pure components in organic phase with a mole fraction of 1, have been determined assuming formation of uranyl nitrate disolvate and trisolvate in the organic phase. The excessive thermodynamic functions of mixing tri-n-butyl phosphate with uranyl nitrate disolvate are presented.
- OSTI ID:
- 133094
- Journal Information:
- Radiochemistry, Journal Name: Radiochemistry Journal Issue: 1 Vol. 37; ISSN RDIOEO; ISSN 1066-3622
- Country of Publication:
- United States
- Language:
- English
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