Uranium-238, uranium-234, and uranium-232, which are fertile material, can be found in reprocessed uranium, which refers to uranium recovered from nuclear reprocessing.
uranium-238 which converts into plutonium-239 uranium-234 which converts into uranium-235 Reprocessed uranium (RepU) is the uranium recovered from nuclear reprocessing, as done commercially in France, the UK and Japan and by nuclear weapons states' military plutonium production programs. Main article: Uranium-232 
