Gas Centrifuge Cascade for Concentrating 235U in Additional Product and Purification of Processed Uranium Hexafluoride from 232,234,236U

It is proposed that the U-232,U-234,U-236 concentration in reprocessed uranium hexafluoride be lowered by adding an extra product stream into a cascade of gas centrifuges. In the extra product U-235 is concentrated up to 95% or more while at the same time the U-232,U-234,U-236 concentration is reduced. This product is diluted with waste uranium hexafluoride to U-235 concentration <5%. A computational experiment was performed for cascades with a different number of gas centrifuges per stage. The product obtained after dilution with U-232,U-234 was shown to meet the ASTM C996-15 specifications for commercial grade uranium hexafluoride. The U-236 content is equal to 0.1% and requires very little compensation by raising the U-235 concentration.