Published November 2, 1984
| Version v1
Patent
Purification process of a mixture by obtention of 2 distinct phases and preferential extraction of impurities
Description
A process for purification of sodium containing traces of Cs, Li or K is described. Cs 137 can be removed from LMFBR reactors up to 1 μg of Cs in 1g of Na or less. The process can be applied when at a given temperature is present a two-phase domain comprising a phase containing a almost pure and a phase A+B enriched in B in respect to the original mixture. Impurities B are extracted by a solvant. Sodium impurities are extracted by a mixture of butixyethanol and ligroin at 930C
Availability note (English)
Available from Institut National de la Propriete Industrielle, Paris (France).Abstract (French)
On decrit un procede de purification du sodium contenant des traces de Cs, Li ou K qui peut etre utilise dans les reacteurs rapides pour eliminer le Cs 137 jusqu'a ce qu'il ne reste que 1 μg de Cs par g de Na au moins. Ce procede est applicable quand a une temperature donnee il existe un domaine a 2 phases comprenant une phase contenant A presque pur et une phase enrichie en impuretes B. Ces impuretes sont extraites par solvant. Les impuretes du sodium sont extraites par un melange ligroine butoxyethanol a 930CAdditional details
Additional titles
- Original title (French)
- Procede de purification d'un melange par obtention de 2 phases d'etat physique distinct et extraction preferentielle des impuretes
- Augmented title (English)
- Sodium purification
Publishing Information
- Imprint Pagination
- 18 p.
- IPC:
- Int. Cl. B01d57/00; C22b26/10.
- IPC
- Int. Cl. B01d57/00; C22b26/10.
- Patent number
- FR patent document 2544999/A/
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 16084152
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- IMPURITIES; PHASE DIAGRAMS; PURIFICATION; SEPARATION PROCESSES; SODIUM
- Descriptors DEC
- ALKALI METALS; DIAGRAMS; ELEMENTS; INFORMATION; METALS
Optional Information
- Secondary number(s)
- FR patent application 8307024.