Abstract
Study of coalescence of liquid droplets in a liquid-liquid system was conducted by use of a batch type of stirred tank. As the three kinds of liquid forming the continuous phase, the lighter dispersed phase and the heavier dispersed phase were adopted the water purified by ion-exchange resins, the pure benzene and the 2: 1 mixture of benzene and carbon tetrachloride, respectively. After the completion of agitation, the composition of both the lighter dispersed medium floating off on the surface of the continuous phase liqid and that of the heavier dispersed medium going down to the bottom of the tank were determined by means of liquid-density measurements. The coalescence fraction evaluated using these deta was analyzed on the basis of a theoretical treatment very similar to the usual chemical reaction kinetics. Owing to this treatment the meaning of coalescence could be made more definite than before. Moreover, from the relatively good accordance between theory and experiments the assumed model of coalescence mechanism was suggested to be reasonable to a deep extent.
