Tungsten Oxide

Blue tungsten oxide is one of the important raw materials for making tungsten powder.  Compared with yellow tungsten, blue tungsten oxide is easy to be doped because of its good activity and large specific surface. It can maintain its original crystalline shape and has been widely used as an upgraded version of yellow tungsten oxide.  There are three main methods for the preparation of blue tungsten oxide. APT closed calcination method, APT hydrogen mild reduction method, internal reduction. Internal reduction method was proposed by scholars in Fudan University in 1981.  Internal reduction method by means of an internal component of the tungsten compound to make reduction of W. Intrinsic reduced tungstate was synthesized with APT as raw material (Intramo - lecularly Reduching Tunnstate). It has thermal decomposition in an inert atmosphere, blue tungsten oxide with simple phase composition, large specific surface and h...

Blue tungsten oxide is one of the important raw materials for making tungsten powder.  Compared with yellow tungsten oxide, blue tungsten oxide is easy to be doped because of its good activity and large specific surface. It can maintain its original crystalline shape and has been widely used as an upgraded version of yellow tungsten oxide.  There are three main methods for the blue tungsten oxide  preparation . APT closed calcination method, APT hydrogen mild reduction method, internal reduction. Internal reduction method was proposed by scholars in Fudan University in 1981.  Internal reduction method by means of an internal component of the tungsten compound to make reduction of W. Intrinsic reduced tungstate was synthesized with APT as raw material (Intramo - lecularly Reduching Tunnstate). It has thermal decomposition in an inert atmosphere, blue tungsten oxide with simple phase composition, large specific sur...