Molybdenum News Center

End at the beginning 1970s, 1980s, molybdenum full wet oxidation leaching process successfully developed, and has been increasingly widely used in industrial production, has developed a nitric acid oxidation process, strongly acidic (or basic) media oxygen pressure cooking technology, electro-oxidation process and other strong oxidants process. Wet process molybdenite under slurry state MoS2 oxidation leaching process does not produce any smoke, and is conducive to a variety of comprehensive recovery of valuable elements, increasing the urgency of the current low-grade ore smelting complex with strong advantage. Molybdenum leaching rate and final recovery greatly improved, relative to improve plant production and labor conditions, automated continuous production and leaching processes.

 

Either acidic or basic conditions under oxygen pressure method is that the oxidation of the soluble molybdate MoS2 in the autoclave.

 

Oxygen pressure cooking method and nitric acid oxidation method is mainly consumed cheap oxidant - air or pure oxygen, but the process requires high temperature and pressure, high reaction equipment requirements, harsh reaction conditions, greater production of technical difficulty, during the process of leaching conditions difficult to control, and there are some security risks in production, generally more difficult to apply to small and medium sized manufacturers, domestic manufacturers have to disable the Act.

 

Taking into account the pyrolusite (MnO2) is a strong oxidant, while industrial production is taken from pyrolusite manganese sulfate reduction roasting and then leaching system needs, if it as an oxidizing agent MoS2, MoS2 itself at the same time being oxidized, MnO2 directly into MnSO4, achieved double-edged sword effect.

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