The transport of Fe(III) and Co(II) from chloride solutions through a liquid membrane containing as carrier trilaurylammonium chloride dissolved in triethylbenzene and absorbed on a polypropylene microporous support has been studied as function of the stirring speed and of the chemical composition of the system. A previously developed permeation model has been shown to interpret closely the experimental transport data. Conditions for Fe(III)-Co( II) Ni(II) separations have been identified and examples of Fe(III)-Co(II), Fe(III)-Ni(II) and Co(II)-Ni(II) membrane separations have been performed.