Two-cascade scheme of gas centrifuges for the purification of reprocessed uranium hexafluoride from ^{232, 234, 236}U

The paper considers features of purification the reprocessed uranium hexafluoride from ^{232, 234, 236}U in two cascades of gas centrifuges with additional feeding streams of waste uranium hexafluoride to the product stages of the cascades. The effective purification from ²³⁶U in the first cascade is carried out at a ²³⁵U concentration of less than 20% in long cascades having a large number of stages. The parameters of the second cascade that significantly reduce the concentration of ^{232, 234}U in the wastes were determined. As a result of the reduction with waste uranium hexafluoride, this stream ensures a commercial low-enriched product to meet the requirements of the ASTM C996-20 specification established for enriched industrial uranium hexafluoride.