Electrolytic method for extracting tin and/or lead contained in an electrically conductive mixture derived from waste, said electrically conductive mixture consisting of a plurality of solid elements and comprising: - less than 50% by mass, with respect to the total weight of the mixture, of tin in metallic form, - less than 25% by mass, with respect to the total weight of the mixture, of lead in metallic form, - more than 25% by mass, with respect to the total weight of the mixture, of metallic copper, and/or metallic iron, and/or metallic aluminium, and/or metallic alloy comprising copper and/or iron and/or aluminium. said method being characterised in that it comprises the steps of: a) forming an anode (200, 201, 202A, 202B) from said electrically conductive mixture, b) preparing an electrolytic solution (800, 801, 802) comprising methanesulfonic acid at a concentration of between 150 g/l and 250 g/l, and tin methanesulfonate at a concentration of between 10 g/l and 60 g/l of tin and/or lead methanesulfonate MSPb at a concentration of between 5 g/l and 120 g/l of lead, c) providing a cathode (600, 601A, 601B, 602A, 602B, 602C), d) at least partly immersing said anode (200, 201, 202A, 202B) and said cathode (600, 601A, 601B, 602B, 602C) in said electrolytic solution (800, 801, 802), and e) applying an electric current between said anode (200, 201, 202A, 202B) and said cathode (600, 601A, 601B, 602A, 602B, 602C), via an electrical device (20, 21, 22), in order, by oxidation, to lixiviate the tin or both the tin and the lead of the anode (200, 201, 202A, 202B), and to allow the deposition on the cathode (600, 601A, 601B, 602A, 602B, 602C) of the tin or of both the tin and the lead initially contained in the electrically conductive mixture. - less than 50% by mass, with respect to the total weight of the mixture, of tin in metallic form, - less than 25% by mass, with respect to the total weight of the mixture, of lead in metallic form, - more than 25% by mass, with respect to the total weight of the mixture, of metallic copper, and/or metallic iron, and/or metallic aluminium, and/or metallic alloy comprising copper and/or iron and/or aluminium. a) forming an anode (200, 201, 202A, 202B) from said electrically conductive mixture, b) preparing an electrolytic solution (800, 801, 802) comprising methanesulfonic acid at a concentration of between 150 g/l and 250 g/l, and tin methanesulfonate at a concentration of between 10 g/l and 60 g/l of tin and/or lead methanesulfonate MSPb at a concentration of between 5 g/l and 120 g/l of lead, c) providing a cathode (600, 601A, 601B, 602A, 602B, 602C), d) at least partly immersing said anode (200, 201, 202A, 202B) and said cathode (600, 601A, 601B, 602B, 602C) in said electrolytic solution (800, 801, 802), and e) applying an electric current between said anode (200, 201, 202A, 202B) and said cathode (600, 601A, 601B, 602A, 602B, 602C), via an electrical device (20, 21, 22), in order, by oxidation, to lixiviate the tin or both the tin and the lead of the anode (200, 201, 202A, 202B), and to allow the deposition on the cathode (600, 601A, 601B, 602A, 602B, 602C) of the tin or of both the tin and the lead initially contained in the electrically conductive mixture.