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[References: 10 tit.]

The paper proposes an approach to solving the problem of separating and concentrating chemical elements from liquid media using electrochemical processes on an asymmetric alternating current under conditions of resonant interactions. The examples of chemical elements extraction from crude oil by the electrochemical method at the resonant frequencies of alternating asymmetric current in the conditions of the experimental installation based on the electrochemical module are given. The maximum extraction degree of sulfur, iron, nickel, and vanadium is 85, 80, 90, and 63%, respectively, where the corresponding frequency (current density) is 90 Hz (4•10{-4} A/cm{2}), 22 Hz (3•10{-4} A/cm{2}), 35 Hz (4•10{-4} А/cm{2}) and 47 Hz (4•10{-4} A/cm{2}), respectively, for the listed elements.