Effect of magnesium reduction on the oxygen content of pickling niobium powder

Abstract Considering the problem of high oxygen content in industrial niobium powder, reduction powder with addition magnesium is studied. Based on thermodynamic analysis thermal effects temperature, addition, time, and atmosphere pickling are The results show that an increase gradually decreases to a certain value, then remains unchanged. In temperature range (953–1203 K), first decreases, increases; best 356 ppm at 1133 K. With extension time (2–6 h), Finally, pickled reduced approximately 400% K for 4 h.