Published February 7, 1986 | Version v1
Patent Metadata-only

Process to obtain pure uranium concentrate from zirconium contaminated solutions

Creators

Description

In this process the pH value of the solution is lowered to 1-3 and then adjusted and maintained between 2.5 to 3 during heating from 30 to 600C for a time long enough to precipitate at least 70% of the zirconium, in these conditions uranium is not precipitated

Availability note (English)

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

Abstract (French)

Ce procede consiste a porter le pH de la solution a une valeur de 1 a 3, puis a ajuster le pH de ladite solution et a le maintenir a une valeur de 2,5-3 en elevant la temperature a une valeur d'environ 30 a environ 600C, pendant une duree suffisante pour qu'il y ait precipitation selective d'au moins 70% du zirconium, tandis que l'uranium reste a l'etat soluble

Additional details

Additional titles

Original title (French)
Procede d'obtention d'un concentre uranifere de grande purete a partir de liqueurs contaminees par du zirconium

Publishing Information

Imprint Pagination
35 p.
IPC:
Int. Cl. C01g43/00; C01g25/00; C01b15/047.
IPC
Int. Cl. C01g43/00; C01g25/00; C01b15/047.
Patent number
FR patent document 2568563/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
17081744
Subject category
S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
AQUEOUS SOLUTIONS; PH VALUE; PRECIPITATION; PURIFICATION; URANIUM CONCENTRATES; ZIRCONIUM
Descriptors DEC
DISPERSIONS; ELEMENTS; HOMOGENEOUS MIXTURES; METALS; MIXTURES; ORE CONCENTRATES; ORES; SEPARATION PROCESSES; SOLUTIONS; TRANSITION ELEMENTS; URANIUM ORES

Optional Information

Secondary number(s)
FR patent application 8412252.