Thermochemical decomposition of molybdenum concentrates with usage of magnesium-containing additives of natural origin

Abstract

This article presents the results of research on the sintering of molybdenite concentrate with magnesium-containing natural additives — brucite (Mg(OH)2) and magnesite (MgCO3). Physical and chemical properties of initial materials were studied. The thermodynamic assessment of the interaction of molybdenum with hydroxide and magnesium carbonate in an oxidizing medium is given. The process of thermochemical decomposition of molybdenum was optimized with usage of cheap magnesium-containing minerals to form molybdate and magnesium sulfate. The developed method makes it possible to reduce the cost of thermochemistry, to minimize the release of sulfur dioxide due to its rapid binding to magnesium sulfate.

Archives of Metallurgy and Materials

“…Also, moo 3 is inevitably using to produce molybdenum (mo) metal and some of the researches have already revealed the various process to synthesize mo particles from moo 3 [10][11][12][13][14]. Despite of these properties, it is well known that the way of obtaining moo 3 particles is very limited by refining from molybdenite as raw material, and it require such hard and complicated process conditions such as high-temperature annealing and auto-clave [15,16]. Furthermore, as the process is being complicated, controlling particle properties is being more complicated, and it directly effects to adapted moo 3 applications by functional deterioration.…”