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Method for dissolving hard-to-dissolve thorium and/or plutonium oxides

Patent ·
OSTI ID:6315564
; ;
Method for dissolving hard-to-dissolve thorium and/or plutonium oxides, especially dioxides such as ThO2, PuO2 or (U/Pu)O2 mixed oxides by heating the oxides in a hermetically sealed vessel in fluoride-free nitric acid. The use of a gas atmosphere containing oxygen in the sealed vessel is advantageous.
Assignee:
ALKEM GmbH, Germany, Federal Republic of
Patent Number(s):
US 4528130
OSTI ID:
6315564
Country of Publication:
United States
Language:
English

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Related Subjects

050700* -- Nuclear Fuels-- Fuels Production & Properties
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ACTINIDE COMPOUNDS
ATMOSPHERES
CHALCOGENIDES
CHEMICAL REACTORS
CONTROLLED ATMOSPHERES
DISSOLUTION
ELEMENTS
HEATING
HYDROGEN COMPOUNDS
INORGANIC ACIDS
NITRIC ACID
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PLUTONIUM COMPOUNDS
PLUTONIUM DIOXIDE
PLUTONIUM OXIDES
THORIUM COMPOUNDS
THORIUM OXIDES
TRANSURANIUM COMPOUNDS
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES