To process the metal waste forms from the pyrochemical treatment of irra­diated EBR-II fuel, an engineering-scale furnace has been designed (see Fig. 10.22) to separate the adhering salt from the metal waste (consisting of steel cladding, zirconium and NFP) by distillation, and then to melt the metal waste in a crucible assembly while recovering the salt vapour in the condenser located above the crucible assembly (Marsden, 2005). The furnace has a vacuum vessel of approximately 1.2 m diameter and 2 m height, together with convective cooling fins to cool the condenser region and a heat shield to limit thermal flux to the hot-cell window. Induction heating can be operated at 1700 °C and 200 mTorr using a 25 mm square copper tube for the induction coil. After demonstrating the successful pro­duction of surrogate metal waste in a glovebox, a furnace of nearly identical design was installed in the INL hot-cell, as shown in Fig. 10.23, and process testing is ongoing (Goff, 2009).