FIELD: technological processes.
SUBSTANCE: invention relates to radiochemical technology and can be used for producing uranium dioxide powder, supplied for production of ceramic tablets of uranium oxide nuclear fuel. Method of producing uranium oxides under effect of microwave radiation is carried out by heating of uranyl nitrate. Solid uranyl nitrate which is pre-treated with hydrazine hydrate is used. Process is carried out at temperature 600-1,000 °C for 10-30 minutes.
EFFECT: invention simplifies method of producing uranium oxides due to use of solid uranyl nitrate during microwave thermal denitration when reacting with hydrazine hydrate with prevention formation of aqueous waste solutions, reducing duration of process.
3 cl, 2 dwg, 2 tbl, 4 ex
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