Tungsten Oxide

Sodium tungstate is an important chemical raw material and an important intermediate product in tungsten metallurgy production. Generally speaking, industrial production of sodium tungstate mainly uses scheelite concentrate or wolframite concentrate as raw material, and the production cost is higher. In the tungsten concentrate production process, there are often some tungsten due to process or equipment reasons, lead to part of the tungsten ore grinding machine into powder or no successful flotation into the tailings, forming tungsten fine mud. The conventional recycle process of tungsten slime is tungsten slime - sodium tungstate - ammonium paratungstate. How can the sodium tungstate be recycled more efficiently by using tungsten slime? Compared with wolframite, fine scheelite slime is characterized by lower grade, more impurities, and more calcium containing molybdenum, which is more difficult to purify. In view of the above, we can use hot ball milling alkali deco...