Usinng Tungsten Trioxide Producing Tungsten Powder

Using a reducing agent to restore pure tungsten, then compound to the metal tungsten powder pyrometallurgical process for tungsten metallurgy process components. Production of tungsten powder of pure tungsten compounds has tungsten trioxide, ammonium paratungstate and tungsten blue, general use of hydrogen, carbon and other reducing agents. Since the application department of chemical purity has stringent requirements of tungsten powder particle size and particle size distribution, so often choose different production methods is according to the different requirements of the tungsten powder. Tungsten powder at modern industrial production are more widely using hydrogen reduction of tungsten trioxide, hydrogen reduction of ammonium paratungstate and blue tungsten oxide hydrogen reduction. The producing method of using tungsten carbide powders also adopted the hydrogen reduction of tungsten trioxide. Modern is more commonly used hydrogen reduction of ammonium paratungstate. Producing blue tungsten oxide, now industries are wildly using hydrogen reduction of tungsten powder method making blue tungsten oxide. Developed in the 1960s fluorine (chlorine) tungsten hydrogen reduction method using hydrogen reduction of gaseous fluorine (chlorine) can be prepared tungsten grade tungsten powder or ultrafine particles can be made directly tungsten tube and other metal products.

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