Review of Brazilian Activities Related to the Thorium Fuel Cycle and Production of Thorium Compounds at IPEN-CNEN/SP

Although the thorium compounds produced have not been employed in the nuclear area, several studies were conducted with a view to conversion of nitrate nuclear-grade thorium oxide suitable for the manufacture of fuel pellets, manufacture of mixed oxide pellets (U,Th)O2, obtaining of thorium tetrafluoride and its reduction to metallic thorium and studies of some properties of the UO2-ThO2 solid solutions.