It is shown that in the presence of a constant electric field, PdCl42– ions may be transported through liquid membranes containing tri-n-octylammonium and trialkylbenzylammonium chlorides into dilute solutions of hydrochloric, sulfuric, perchloric, and nitric acids and into water. The effect exerted by the composition of aqueous and organic solutions, the current density of electrodialysis, the intensity of stirring, and the thickness of the liquid membrane on the transmembrane transport rate of palladium(II) was determined. It was found that the flux of PdCl42– ions increases with increasing initial metal concentration and current density, whereas an increase in the concentration of hydrochloric acid in the feed solution and the carrier concentration in the organic membrane negatively affects the extraction rate of palladium(II). It is shown that the composition of the receiving solution, the thickness of the liquid membrane, and the stirring rate have no significant effect on the rate of membrane-mediated metal extraction. The maximum flux of palladium(II) through a liquid membrane is 120 μmol m–2 s–1. The processes of membrane-mediated extraction of palladium(II) from binary hydrochloric acid mixtures containing macroimpurities of base metals were studied, and the conditions for selective extraction were determined. The maximum separation coefficients of palladium(II) ions from nickel(II), iron(III), and copper(II) are 5000, 770, and 22, respectively.