采用熔盐电脱氧法(即FFC法)制备出金属钽粉,并对其进行了SEM、TEM、粒度分布、化学成分和电性能等分析。结果表明:使用该方法制备的钽粉原始颗粒尺寸为200～400nm,相互粘结呈珊瑚状,氧含量降至3.69×10-3;该钽粉的比容达80 000μF.V/g以上,可满足制作电容器的要求。经计算,该钽粉制备工艺的电流效率仅为30%,要实现工业化应用必须解决电解过程中电流效率低这一关键问题。 Metal tantalum powder was prepared by molten salt deoxidation method (FFC method), and its SEM, TEM, particle size distribution, chemical composition and electrical properties were analyzed. The results show that the original size of the tantalum powder prepared by the method is 200-400nm, the cohesive cohesive state is formed, the oxygen content is reduced to 3.69 × 10-3, the specific volume of the tantalum powder is more than 80,000μF.V / g, To meet the production requirements of the capacitor. Calculated, the current efficiency of the tantalum powder preparation process is only 30%, to achieve industrial applications must solve the key problem of low current efficiency in the electrolysis process.