Molybdenum Powder Reduction Theory
- Details
- Category: Molybdenum knowledge
- Published on 06 September 2013
- Written by 陈桂兰
- Hits: 648
Preparation of Molybdenum powder is a process including ammonium to MoO3, MoO to MoO2, MoO2 to molybdenum powder independent chemical reactions, phase transitions through a series of complex processes involving ammonium ingredients and MoO3, MoO2, molybdenum 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, it has been basically defined 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 that the reduction of MoO3 to MoO2 is Mo4O11 as continuous reaction intermediates, Ressler and so that during the restore process, MoO3 first adsorbed hydrogen atoms [H] generated HxMoO3, then release the adsorbed HxMoO3 [H] MoO3 and MoO22 species into the product, MoO2 continue to grow as the temperature rises, and the intermediate state into a further reduction of MoO3 Mo4O11, and then reduced to MoO2.
More molybdenum product: http://www.molybdenum.com.cn
Tel: 0592-5129696 Fax：0592-5129797
E-mail:
This email address is being protected from spambots. You need JavaScript enabled to view it.
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Price: http://www.chinatungsten.com
sales@chinatungsten.com