CASTING LARGE INGOTS OF URANIUM

Sound ingots, 7 in. dianneter, weighing 1200 lb and with 91 to 95% recovery in metal, can be cast in iron molds after induction melting the uranium "derbies" in magnesia or graphite crucibles under open argon atmosphere. A small araount of barium chloride, added shortly before pouring, protects the stresra of molten metal from oxidation. (auth)