Published January 2, 1987 | Version v1
Patent Metadata-only

Separation process of rare earths and uranium from a UF4 Concentrate

Creators

Description

Uranium tetrafluoride is treated by potassium hydroxide, the precipitate is dissolved in nitric acid. The solution is extracted by an organic solvent, purified uranyle nitrate is obtained in the organic phase leaving the rare earth in the aqueous phase from which they are precipitated by a basic compound

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

L'invention est caracterisee par une attaque de l'UF4 par la potasse suivie d'une reprise nitrique du precipite obtenu et d'un traitement par un solvant organique qui donne d'une part une solution organique contenant du nitrate d'uranyle purifie, d'autre part une solution aqueuse de laquelle on precipite par une base un concentre de terres rares

Additional details

Additional titles

Original title (French)
Procede de separation des terres rares et de l'uranium d'un concentre d'UF

Publishing Information

Imprint Pagination
12 p.
IPC:
Int. Cl. C22b3/00; C01f17/00; C01f43/00; B01d11/04.
IPC
Int. Cl. C22b3/00; C01f17/00; C01f43/00; B01d11/04.
Patent number
FR patent document 2584092/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
18075772
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
PRECIPITATION; PURIFICATION; RARE EARTHS; SOLVENT EXTRACTION; URANIUM
Descriptors DEC
ACTINIDES; ELEMENTS; METALS; SEPARATION PROCESSES

Optional Information

Secondary number(s)
FR patent application 8510374.