EFFECTIVE INTERFACIAL AREA IN THE RTL CONTACTOR FROM RATES OF EXTRACTION WITH CHEMICAL REACTION.

The values of aqueous phase physical transfer coefficient and effective interfacial area of RTL (Graesser) extractor were obtained at different rotor speeds. For the latter, the methodology of liquid extraction accompanied by fast pseudo - first order reaction was used. It was confirmed that the alkaline hydrolysis of n-butyl formiate can be conveniently employed for this purpose. Values of the aqueous phase mass transfer coefficient varied between 2-5 multiplied by 10** minus **5 m/s and was highest at rotor speeds of about 0. 2 rev/s. The effective interfacial area varied between 90-140 m**2/m**3 for rotor speeds of 0. 06 - 0. 25 rev/s.