Research of the efficiency of using isotope exchange in carbon dioxide in the process of obtaining highly enriched ¹³C in a gas centrifuge cascade

The mechanism of the isotope exchange reaction proceeding in carbon dioxide in an isotope exchange reactor (IER) is considered. Possible schemes of the given reaction are given. Changes in molecular spectrum of carbon dioxide and distribution of ¹³C isotope at the inlet and at the outlet of the reactor are shown. Dependence of efficiency of a gas centrifuge (GC) cascade for obtaining highly enriched C¹³ on IER position for different values of isotope exchange degree is studied. Techniques of calculating a GC cascade for separation of polyisotopic chemical compounds are used. It is shown that the cascade efficiency functional dependence of the place of IER installation is a unimodular convex line which has a maximum. Places of optimal location of one or two IERs in a GC cascade and the values of isotope exchange in them at which more than 99% enrichment in ¹³C can be achieved are determined.