Das trenndüsenverfahren

Kernforschungszentrum Karlsruhe, Institut für Kernverfahrenstechnik der Technischen Hochschule., R. F. A..

Zusammenfassung

In the nozzle separation process the addition of a light gas increases the density of the pressure diffusion current of a heavy isotope mixture which gives rise to a higher separation factor. It is shown experimentally that in a mixture of 10 mole percent argon and 90 mole percent helium the elementary separation effect of the argon isotopes is higher by a factor of 1,7 as compared with pure argon under the same throughput and cut of the isotopic mixture. The economy of the separation process is also improved by the addition of a light gas although it too has to be processed in the separation cascade. In case of the argon isotopes the addition of 400 mole percent helium reduces the specific suction volume to 1/3, the specific slit length to 1/5 and the specific compression energy to 3/4 of the values for pure argon.

Preliminary experiments with UF₆/He-mixtures show that for the separation of the uranium isotopes too economic advantages are to be expected from the addition of a lighter gas.