FCN - Reconvertion
The uranium dioxide (UO2) powder factory was designed to operate in variable commercial scale, having a nominal capacity of 160 t/y. It works an independent production unit and it supplies the pellet factory with uranium dioxide powder (UO2).
It is equipped with most modern equipment and safety systems. Its operation is carried out by highly trained technicians and in constant updating.
UO2 Dust Process Production Next, the precipitator contents are pumped into vacuum rotating filters where the TCAU powder is dried and transported to the furnace feeder. In the fluidized bed furnace, at temperature of 600° C, the TCAU is fed together with hydrogen gas (H2) and water steam. The generated product - uranium dioxide (UO2), still unstable - is discharged in the stabilizer where it receives the addition of nitrogen gas (N2) and air. After the stabilization, the UO2 is transported to large rotating mixing cases, the homogenizers, where another uranium compound (U308) is added to this powder, becoming ready and available for FCN Pellets.
In solid state, in cylindrical containers], the enriched uranium, in the form of uranium hexafluoride (UF6), is conveyed for heating in the vaporizer]. At 100°C, the UF6, already in gaseous state, is mixed with two gases: carbon gas (CO2) and ammoniac gas (NH3), in a precipitator tank, containing demineralized water (pure). The chemical reaction between these compounds produces the ammonium tricarbonate and uranila (TCAU), a yellow solid not soluble in water.
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