Abstract：Different industrial methods of preparing tantalum powder were systematically introduced. These techniques，
including sodium reduction of potassium fluo tantalate，sodium/magnesium reduction of tantalum oxide，
electrical deoxidation of tantalum oxide and so forth，were developed during past decades. Advantages and disadvantages
were compared and analyzed in respect of production efficiency and reaction mechanism to select the
most optimal method. Subsequently，purification techniques for preparing tantalum powder were introduced. The
progresses of acid leaching，deionized water washing and oxygen removing were described in details. Finally，metallic
elements of Fe，Cu，Ni，Cd and nonmetallic elements of C，O，Si were discussed in deep to evaluate the
current purification techniques.
苏龙兴，颜晓勇. 金属钽粉的生产及提纯工艺进展[J]. 粉末冶金工业, 2021, 31(01): 91-97.
SU Longxing，YAN Xiaoyong. Progress of production and purification technology of tantalum powder. Powder Metallurgy Industry, 2021, 31(01): 91-97.
2021, Vol. 31 
