Thermal Diffusion Factor for Carbon Tetrachloride-Cyclohexane and Benzene-n-Heptane Mixtures from Thermogravitational Column Separation

Measurements of the separation of liquid mixtures of n-heptane/benzene and carbon tetrachloride/cyclohexane in a thermogravitational column are reported. The results show that thermal diffusion columns of little mechanical precision can furnish suitable thermal diffusion factors when the diffusion coefficient, viscosity, density, and compressibility factor for the mixture are known.