Random Packings are very common in the refinery, gas processing, chemical, and environmental process industries. Random packings have high density and excellent heat and acid resistance, and it withstands the corrosion of various inorganic acid, organic acid and organic solvents except for hydrofluoric acid.
Used widely
It is widely used in drying towers, absorbing towers, cooling towers, washing towers, regenerative towers and desulfurization towers in chemical engineering, metallurgy, coal gas, acid and oxygen production, pharmacy and other industries.

Look here for Ceramic pall ring, Raschig Ring.