1987 Volume 13 Issue 5 Pages 700-703
The effect of temperature on the demulsification of W/O emulsion by application of pulsed DC high potential was studied, using Span 80 and kerosene as a surfactant and a solvent, respectively. In systems concentrating mercury by C-24 and zinc by D2EHPA, demulsification was accelerated and the water content in the oil phase after breaking the emulsion decreased with a rise in temperature. Thus the separation efficiency was enhanced by heating of the emulsion. However, such an accelerative effect in operation at elevated temperatures was not detected in the copper-LIX64N system.
