MoO2 to molybdenum powder three independent chemical reactions

composition adjustable direction, thus preparing the theory and its preparation technology put forward higher requirements .  1.1 molybdenum powder reduction theory molybdenum powder is a preparation process includes ammonium to MoO3, MoO  to MoO2, MoO2 to molybdenum powder three independent chemical reactions, through a complex series of phase transitions involving molybdic acid ammonium raw materials as well as MoO3, MoO2, molybdenum plating oxide, molybdenum blue and other intermediate products of the morphology, size, structure, performance and many other factors extremely complex physical and chemical processes. At present, has been basically clear reduction of MoO3 to Mo kinetics mechanisms, namely: MoO3 to MoO2 stage of the reaction process in line with the nuclear break-up model, MoO2 to Mo-stage reaction comply nuclear reduced model; MoO2 to Mo stage of the reaction in two ways, low dew point pseudomorphic transformation through the atmosphere, when the high dew point atmosphere by chemical vapor migration. But for MoO3 to MoO2 phase reaction method has not yet formed consensus, Sloczynski [1]  think MoO3 to MoO2 reduction is Mo4O11 as continuous reaction intermediates, Ressler, etc. [2] that during the restore process, MoO3 first adsorbed atom [H] generated HxMoO3, then release the adsorbed HxMoO3 [H] into MoO3 and MoO2