Process for recovering niobium and/or tantalum compounds from such ores further containing complexes of uranium, thorium, titanium and/or rare earth metals
A process for recovering one or more nonradioactive transition metal compounds from an ore containing one or more compounds of said transition metal or metals and further containing at least one complex of a member selected from the group consisting of uranium, thorium, radium, titanium, and rare earth metals, comprises decomposing said ore in crushed condition by means of an acid so that a portion of the ore is brought into solution in a liquid phase and another portion of the ore remains in a solid phase. The compound or compounds of the transition metal or metals to be recovered pass into only the liquid or into only the solid phase, the uranium in the crushed ore is treated so as to cause substantially all of said uranium to be present in an oxidation state in which it cannot, during the decomposition step, pass into the phase containing the transition metal compound or compounds.
- Assignee:
- Uranerzbergbau-GmbH (Germany, Federal Republic of)
- Patent Number(s):
- US 4446116
- OSTI ID:
- 6455849
- Resource Relation:
- Patent Priority Date: Priority date 2 Apr 1981, Germany, Federal Republic of (F.R. Germany); Other Information: PAT-APPL-361275
- Country of Publication:
- United States
- Language:
- English
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PROCESS OF RECOVERING URANIUM FROM ITS ORES
PROCESS OF RECOVERING URANIUM FROM ITS ORES
Related Subjects
NIOBIUM COMPOUNDS
RECOVERY
ORE PROCESSING
TANTALUM COMPOUNDS
ACIDIZATION
CHEMICAL COMPOSITION
CRUSHING
ORES
PHASE TRANSFORMATIONS
THORIUM
TITANIUM
URANIUM
ACTINIDES
COMMINUTION
ELEMENTS
METALS
PROCESSING
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
050400* - Nuclear Fuels- Feed Processing