Simultaneous Effect of Contamination and Agitation on Mass Transfer of High Interfacial Tension Liquid-Liquid Extraction Systems

摘要

The influence of contamination and agitation on single drop mass transfer was investigated,using a pilot rotating disc contactor.The chemical system of toluene-acetone-water,having a high interfacial tension,was used with the advantage of high accuracy and repeatability in using GC for analysis.It is ideally required to account for the extent of contaimnation in a quantitative manner and in both phases with a single parameter.For this purpose and for design applications,an improvement was made on a combined mass transfer model,to be consistent with experimental data without mathematical assumption.The influence of drop size was also considered.Based on the series of experimental data,a correlation was proposed for the coefficient of this model.