ABSTRACT
The particular secondary liquid-liquid system which has been used to corroborate the validity of the theoretical predictions was a heavy-phase-droplet and light-phase-film structure immersed in a heavy-phase continuum (double emulsion). This system was the heavy-phase output from a “pump-mix” mixer-settler battery together with its entrained light phase. The battery was a part of a pilot plant for the extraction of uranium from wet phosphoric acid by the D2EHPA-TOPO process [28,33,36-45,47-52,58,62,92,97,101]. The heavy liquid was 5.6 M phosphoric acid, and the light liquid was the synergistic mixture of 0.5 M di(2-ethylhexyl) phosphoric acid and 0.125 M tri-noctylphosphine oxide in dearomatized kerosene [38,48-52].
