Magnesium Reduction of Niobium Oxide Compounds in the Combustion Regime

摘要

We have studied parameters of the magnesium reduction of Nb2O5 and Mg4Nb2O9 in the combustion regime and characteristics of niobium powders thus prepared. The combustion speed and temperature have been determined as functions of parameters of the starting mixture. The use of magnesium niobate as a precursor for the reduction process has been shown to increase the degree of reduction and the specific surface area of the niobium powders by 15 to 25 times.