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熔点较低的镧系金属(La、Ce、Pr、Nd)用氯化物熔盐电解。较高熔点的金属(Sm、Gd、Dy、Y)用氟化物熔体电解氧化物制得。用热还原法制取稀土金属,原料用稀土氟化物,还原剂用钙。还原出的金属含大量杂质(CaF_2、Ca、Ta等),须进行
Lower melting lanthanide metals (La, Ce, Pr, Nd) are electrolysed with chloride salts. Higher melting point metals (Sm, Gd, Dy, Y) are produced by electrolyzing oxides with fluoride melts. Preparation of rare earth metal with thermal reduction, rare earth fluoride raw materials, reducing agent with calcium. Restored metal with a large number of impurities (CaF_2, Ca, Ta, etc.), to be carried out