The elemental abundance of molybdenum in the earth's crust is about 1×10-6, and the highest content of molybdenum in granite is 2×10-6. Molybdenum in geochemical classification, a transitional pro-iron elements. In the internal mineralization, molybdenum is mainly combined with sulfur to form molybdenite. Molybdenite (MoS2) is the most widely distributed molybdenum mineral with more than 30 kinds of molybdenum minerals in nature. Other more common minerals include iron-containing molybdenum molybdenum China ([Fe3 + (MoO4) 8 · 8H2O]), calcium molybdate mine (CaMoO4), color molybdenum lead ore (PbMoO4), sulfur glue molybdenite (MoS2), molybdenum blue Mine (Mo3O8·nH2O) and so on. In the metallurgical industry, the production of molybdenum as the additive alloy, or tungsten, nickel, cobalt, zirconium, titanium, vanadium, rhenium and other advanced alloy composition to improve its high temperature strength, wear resistance and corrosion resistance.
Metal molybdenum is widely used as a heating material and structural material for high-temperature electric furnaces, a large electrode and a gate of a vacuum tube, a semiconductor, and an electric light source material. Due to its small thermal neutron capture cross section and high durability, molybdenum can also be used as a structural material for nuclear reactors. In the chemical industry, molybdenum is mainly used in lubricants, catalysts and pigments. Molybdenum compounds are also widely used in agricultural fertilizers.
The molybdenum ore beneficiation process generally adopts a flotation process, three crushing processes, namely coarse crushing, secondary crushing and fine crushing; secondary ball mill grinding; two rough selection, multiple selection operations. The specific process is as follows: firstly crushing, uniformly feeding the ore to the mine through vibration, feeding to the ball mill for crushing operation, and then grading, finally feeding the materials and chemicals into the mixing tank and stirring them, and feeding them into the flotation machine for flotation operation.
Molybdenum ore dressing equipment includes: vibrating feeder, jaw crusher , impact crusher , ball mill, spiral classifier, flotation machine, thickener and dryer.
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