CHARACTERISTICS OF COREDUCTION OF NICKEL AND MOLYBDENUM FROM OXIDE SYSTEMS

We have studied the kinetic characteristics of reduction of nickel and molybdenum from their oxide mixtures. We have monitored the developme nt of the specific surface area during reduction. We calculate the nuc leation rate and the apparent activation energy. The reduction tempera ture for molybdenum in the presence of nickel was shown to decrease ap preciably; and unlike the conventional scheme, in which during the fir st reduction stage MoO3 transforms into MoO2 or molybdenum suboxide, m etallic molybdenum appears. Such reduction conditions made it possible to produce fine (S-sp = 20 m(2)/g) powder of the nickel-based solid s olution and pure molybdenum from the oxide mixtures precipitated from the salt solutions at 650 degrees C.