In the past hundred years, the traditional molybdenum metallurgy technology has been using“Ammonia process” to produce high purity molybdenum trioxide, which inevitably produces a large amount of“Ammonia nitrogen” waste pollutants. At the same time, with the rapid development of high-tech industries such as semiconductor and electronic information, higher requirements are put forward for the purity of molybdenum products, traditional technology is even more difficult to adapt to this change.