The waste residue of tungsten disulfide usually contains a large amount of versatile tungsten oxide. So we must attach importance to the recovery of waste residue from tungsten disulfide to avoid resource wasting.

“Three wastes” pollution produced in the preparation of tungsten disulfide, harming the human health and environment. They are tungsten-containing residue, acid-containing liquor and hydrogen sulfide together with other gases. They deserve our attention.

Recovery of tungsten disulfide is extremely significant. It mainly refers to the recovery of tungsten-containing residue, acid-containing liquor, and hydrogen sulfide together with other gases produced in tungsten disulfide preparation.

Cations in ionic liquid form a cation layer around spherical tungsten disulfide particles to prevent their contact. In this way, ionic liquid can effectively disperse spherical tungsten disulfide in lubricating oil.