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PURIFICATION OF ORGANIC COMPOUNDS BY THERMAL DIFFUSION.
PHILCO RESEARCH LABS NEWPORT BEACH CALIF
The study consisted of an extensive review of unpacked and packed thermogravitational column theory, an experimental investigation involving both unpacked and packed columns, and an analysis of the experimental results in relation to theoretical predictions. Improvements in column design and operating procedures were developed in order to facilitate the acquisition of reliable and consistent separation data. The following results were obtained 1 pure component properties alone cannot predict column performance, 2 separation data for a homologous series can be correlated in terms of property differences with certain restrictions, 3 linear packed column theory is invalid at small permeabilities, 4 characteristic packing size is not an important variable affecting column performance, 5 transient batch packed column performance can be predicted using cell measured binary Soret coefficients, and 6 continuously operated packed column performance is similar to that of the unpacked column in its dependence on the feed flow rate. Author
Final rept. for 1 Jul 63-1 Jul 64,