Titanium sponge is a highly porous, metallic material that is produced by reducing titanium tetrachloride (TiCl4) with magnesium (Mg) in a reactor vessel. The resulting product is a sponge-like material consisting of pure titanium and magnesium chloride (MgCl2) byproducts, which are removed by leaching with water.

Titanium sponge is a critical raw material in the production of titanium alloys and other titanium products. It is used in applications where high strength, low weight, and excellent corrosion resistance are required, such as aerospace, marine, and medical industries. The sponge is typically melted in a vacuum arc furnace and cast into various shapes, such as bars, billets, and ingots, which are further processed into finished products.

The quality and properties of the titanium sponge depend on various factors, such as the purity of the starting materials, reaction conditions, and post-processing treatments. Therefore, it is essential to maintain strict quality control measures throughout the entire production process to ensure the highest quality and performance of the final products.