Recent Development in Pyrochemistry at Los Alamos

摘要

Recent developments in pyrochemical processing at Los Alamos include the recovery of plutonium from anodes and impure metal by pyroredox and new molten salt handling and purification techniques. The anode is dissolved in a ZnCl sub 2 KCl salt to form PuCl sub 3 and a zinc and impurities button. Calcium reduction of the PuCl sub 3 yields 95 to 98% pure plutonium. New techniques for transferring molten salt from a purification or regeneration vessel to molds has been successfully developed and demonstrated. Additional salt work involving recycle of direct oxide reduction salts using anhydrous hydrogen chloride, phosgene, and chlorine gases is under way. 13 figures, 1 table. (ERA citation 10:001960)