PRODUCTION OF URANIUM NITRIDE POWDERS Russian patent published in 2014 - IPC B22F9/16 C01G43/25 

FIELD: metallurgy.

SUBSTANCE: proposed method comprises heating of metal uranium in evacuated reaction vessel at residual pressure of 10-1-10-2 mmHg and 250-300°C with subsequent feed of hydrogen to 750-800 mmHg. Uranium hydration is performed for time interval defined by preset formula. Reaction vessel with produced uranium hydride powder is subjected to evacuation another time at 220°C to residual pressure in reaction vessel of 10-1-10-2 mmHg. Nitration of produced uranium hydride is made in nitrogen flow at 250-300°C Pressure in reaction vessel is adjusted from 1 to 800 mmHg depending upon the change in area of powder reaction surface.

EFFECT: increased dispersion of uranium nitride powder, accelerated powder production.

2 cl, 1 tbl, 1 ex