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the method of producing pure metals, by making the impure metal the anode in an electrolytic cell and depositing a pure cathode. The impurities either remain undissolved at the anode or pass into solution in the electrolyte.
electro-refining . EKI terminibaas Esterm. Eesti Keele Instituut, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//esterm/electro-refining/1/eng (01.07.2026)