Transient operation in thermal diffusion columns

From the study of non-steady-state separation in a hot-wire thermal diffusion column, it is shown that the experimental results for the magnitude H02/ mu (Kc+Kd) are proportional to the theoretical values predicted by the Furry-Jones-Onsager (FJO) formulation. This result, together with the earlier ones concerning the similar relations fulfilled by the logarithm of the maximum separation factor and the optimum pressure, ensures that the FJO theory is able to predict the experimental values of the three column constants H0, Kc, and Kd, with the exception of a multiplicative temperature-independent constant, for Kr gas in the temperature range 300-1100 K.