Published June 23, 1989
| Version v1
Patent
Process for plutonium rextraction in aqueous solution from an organic solvent, especially for uranium plutonium partition
Description
The organic solvent containing plutonium is contacted with an aqueous solution of a uranous salt, for instance uranous nitrate, and a hydroxylamine salt, for instance the nitrate. In these conditions uranous nitrate is a reducing agent of Pu III and hydroxylamine nitrate stabilizes Pu III and U IV in the aqueous phase. Performances are similar to these of the U IV-hydrazine nitrate without interference of hydrazine nitrate degradation products
Availability note (English)
Available from Institut National de la Propriete Industrielle, Paris (FR).Abstract (French)
On met en contact le solvant organique contenant le plutonium avec une solution aqueuse acide de sel uraneux, par exemple de nitrate uraneux, et de sel d'hydroxylamine, par exemple de nitrate d'hydroxylamine. Dans ces conditions, le nitrate uraneux agit comme agent reducteur du plutonium a la valence III et le nitrate d'hydroxylamine, stabilise PuIII et UIV en phase aqueuse. On obtient des performances comparables a celles du systeme UIV-nitrate d'hydrazine sans former les produits genants de degradation du nitrate d'hydrazineAdditional details
Additional titles
- Original title (French)
- Procede de reextraction en solution aqueuse du plutonium present dans un solvant organique, utilisable notamment pour la partition uranium plutonium
Publishing Information
- Imprint Pagination
- 12 p.
- IPC:
- Int. Cl. B01d11/04; C01g56/00; G21c19/44.
- IPC
- Int. Cl. B01d11/04; C01g56/00; G21c19/44.
- Patent number
- FR patent document 2624755/A/
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 21018090
- Subject category
- S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- HYDROXYLAMINE; PLUTONIUM; REDUCTION; SOLUTIONS; SOLVENT EXTRACTION; URANIUM NITRATES
- Descriptors DEC
- ACTINIDE COMPOUNDS; ACTINIDES; AMINES; CHEMICAL REACTIONS; DISPERSIONS; ELEMENTS; HOMOGENEOUS MIXTURES; METALS; MIXTURES; NITRATES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; SEPARATION PROCESSES; TRANSURANIUM ELEMENTS; URANIUM COMPOUNDS
Optional Information
- Secondary number(s)
- FR patent application 8717726.