Method for the enrichment of carbon 13 by means of laser irradiation.

摘要

A method for the enrichment of carbon 13 by use of multistage laser irradiation. A mixture of CHClF2 and Br2 is used as starting material. The mixture is irradiated with laser rays emitted from a carbon dioxide gas laser to obtain CBr2F2 enriched with carbon 13. This CBr2F2 enriched with carbon 13 is once more irradiated with laser rays emitted from a carbon dioxide gas laser to produce C2Br2F4 which is further enriched with carbon 13. Alternatively, the product CBr2F2 of the first laser irradiation is once more irradiated together with O2 to produce COF2 which is further enriched with carbon 13.