Interfacial areas of liquid-liquid dispersions from light transmission measurements

Authors

  • C. M. McLaughlin,

    1. Department of Chemical Engineering, Purdue University West Lafayette, Indiana 47907
    Current affiliation:
    1. Engineering Department of Texaco Inc., Houston, Texas
    Search for more papers by this author
  • J. H. Rushton

    Corresponding author
    1. Department of Chemical Engineering, Purdue University West Lafayette, Indiana 47907
    • Department of Chemical Engineering, Purdue University West Lafayette, Indiana 47907
    Search for more papers by this author

Abstract

A mathematical model simulating light transmission through liquid-liquid dispersions has been developed. Numerical solutions of the model for various drop size distributions show that the fraction of parallel light which passes through a dispersion is a unique function of a dimensionless group, here named the Transmission Number, regardless of the drop size distribution. The results, which were verified by actual light transmission experiments, show that the interfacial area of a liquid-liquid dispersion can be calculated from a light reading provided that the light detector receives only parallel light. Application of the results to other two-phase dispersions is indicated.

Ancillary