Abstract:

The liquid-liquid mass transfer of butanone across an emulsion liquid membrane(ELM) was studied. The effects of surfactant concentration, temperature and stirring speed were also  studied. The results showed that the mass transfer resistance of a surfactant monomolecular layer adsorbed on the oil／water interface accounted for about 63％ of the total mass transfer resistance. The liquidliquid mass transfer coefficient increased with an increase of temperature and stirring speed.

Key words:  emulsion liquid membrane (ELM); butanone; liquid-liquid mass transfer