Research Information System
MEASUREMENT SCIENCE AND TECHNOLOGY, vol.4, no.7, pp.776-779, 1993 (SCI-Expanded)
A new vapour-liquid equilibrium still is designed and tested using three binary systems. The apparatus contains an equilibrium cell placed in a constant-temperature oil bath. The recirculation is provided by partial vaporization of the liquid in an electrically heated vertical tube. The pressure and temperature variations in the equilibrium cell are eliminated. Experimental results are in good agreement with the values reported in the literature. In summary, this paper outlines the design principles, mode of operation and the results obtained on a new vapour-liquid equilibrium still.