STUDIES ON BINARY GAS-SOLID ADSORPTION .6 . BINARY GAS-ADSORPTION ON LAMP BLACK WITH DIFFERENT SURFACE COVERAGES

The composition adsorption isotherms (y(a) similar to x(g) curve) for toluene-n-hexane, benzene-n-hexane, acetone-n-hexane and n-pentane-n-h exane vapor mixtures on lamp black with different surface coverages (t heta) at 25 degrees C were measured. The experimental results indicate that the y(a) similar to x(g) curves approach gradually up to their b inary liquid vapor equilibrium with increasing surface coverage, There fore, the binary gas phase and adsorption phase at equilibrium are sim ilarly with the binary gas liquid phase equilibrium. The composition a dsorption isotherms of the four binary gases adsorption on lamp black systems are in accordance with simulated equation of relative volatili ty.