In the paper, the novel method of electro-deoxidization, namely, FFC Cambridge Process method was used to reduce solid Nb_2O_5 directly to niobium metal in a eutectic melt of CaCl_2-NaCl.

• 本文采用FFC Cambridge Process法，亦称熔盐电脱氧法，在CaCl_2-NaCl熔盐中，以烧结的Nb_2O_5片为阴极、石墨棒为阳极，在3.；1V电压下将Nb_2O_5直接还原成金属铌。