Abstract
The production of molybdenum starting from MoO3 in an industrial large-scale process has been compared with the corresponding reduction in laboratory scale. For this purpose, individual samples from the production chain were compared with the reduction stages from a thermogravimetric investigation. Due to the different process conditions and the different scales, the reductions can be classified as kinetically controlled on the one hand and thermodynamically controlled on the other. It can be shown that in both processes, identical main intermediates with respect to the chemistry are formed, but these exhibit different crystallographic structures. The corresponding structure types were assigned using crystallographic methods.
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