Solution of Equation of Thermal Diffusion Column

The equivalent annulus width concept is used to characterize a small commercial thermogravitational thermal diffusion column and its validity checked experimentally by separating batchwise in the column mixtures of n-heptane-benzene with different initial concentrations. The equation of Ruppell and Coull was used to analyse the data in the short separation times range and determine the equivalent annulus width. Good agreement was obtained between the experimental and predicted time-separation curves when using the equivalent annulus width value and on averaged value of the thermal diffusion constant. A new method is presented for the simultaneous determination of the equivalent annulus width and the thermal diffusion constant of a binary mixture from a single set of experimental data.

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DTA curves and non-isothermal reaction rates

Koch

Stilkerieg

1976

Thermochimica Acta

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Solution of Equation of Thermal Diffusion Column

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The application of the equivalent annulus width concept in thermal diffusion separations

DTA curves and non-isothermal reaction rates

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