GEM-BIS(DISUBSTITUTEDPHOSPHINYL)ALKANES. II. EXTRACTION OF URANIUM(VI) WITH BIS(DI-N-HEXYLPHOSPHINYL)METHANE
The solvent extraction properties of bis(di-n-hexylphosphinyl)methane, HDPM, and STA(C/sub 6/H/sub 17/)/sub 3/P(O)!/sub 2/CH/sub 2/ f or uranium(VI) were studied and compared with those of tri-noctylphosphine oxide, TOPO, (C/sub 8/ H/sub 17/)/sub 3/. In contrast to TOPO, HDPM forms a polymeric-like complex with uranyl compounds in non-polar solvents. Polymer formation is prevented by the use of a polar solvent such as 1,2-dichlorobenzene. The partition equilibria of nitric acid and uranyl nitrate into 1,2-dichlorobenzene solutions of HDPM and TOPO are discussed. The partition data for various mineral acids and the effect of concentration of these acids on the extraction of uranium (VI) are presented. (auth)
- Research Organization:
- Ames Lab., Ames, Iowa
- NSA Number:
- NSA-17-034058
- OSTI ID:
- 4681022
- Journal Information:
- Journal of Inorganic and Nuclear Chemistry (England) Merged with Inorg. Nucl. Chem. Lett. to form Polyhedron, Journal Name: Journal of Inorganic and Nuclear Chemistry (England) Merged with Inorg. Nucl. Chem. Lett. to form Polyhedron Vol. Vol: 25; ISSN JINCA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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