This review is devoted to the electrochemical synthesis of intermetallic and refractory compounds based on rare-earth metals (REM), iron triad, boron and silicon in ionic melts. Data on the electrochemical behavior of lanthanides, iron, cobalt and nickel chloride complexes, as well as fluoroborate and fluorosilicate ions in chloride and chloride-fluoride melts are provided. Peculiarities of joint electroreduction processes between rare-earth metal ions and iron triad ions, fluoroborate and fluorosilicate ions are analyzed. The optimal parameters of the electrosynthesis of double and triple compounds based on rare-earth metals are discussed. Prospects for future development of high-temperature electrochemistry of rare-earth metals and technology solutions in the field of electrosynthesis of rare-earth metallic compounds in molten salts are discussed.
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