In order to prepare tungsten powder from ammonium paratungstate, tungsten oxide should be burned in a weak reduction atmosphere before hydrogen reduction is a common method in industry. The tungsten powder prepared by this process is mostly polycrystalline, which is the main material for preparing tungsten alloy and tungsten carbide.

Tungsten disulfide powder with good lubricating performance is usually used in parts sandblasting so as to improve the mechanical properties of the parts themselves. Tungsten disulfide powder can adhere tightly to parts with the aid of sandblasting.

Tungsten disulfide powder has metallic luster and good lubricity. Therefore, it can be used in parts polishing to improve the smoothness and brightness of parts surfaces. Usually, tungsten disulfide powder is mixed with isopropanol in the polishing process.

Recently, two-dimensional tungsten oxide-tin niobate nanosheet composite semiconductor materials have been prepared by two-step hydrothermal method. The reaction process is simple and the photocatalytic activity of the products is good. The main steps are as follows: