Titanium-containing additive

A method for increasing the durability of a brick lining of a metallurgical furnace by injecting into the furnace a titanium containing additive into the metallurgical furnace, wherein the temperature of the furnace is sufficient such that the titanium containing additive forms a high-temperature-resistant and wear-resistant titanium compound, wherein the titanium-containing material has a 100% fineness of less than 0.2 mm, and wherein the titanium-containing additive is able to form high-temperature-resistant and wear-resistant titanium compound in a process or during the production of a product with a co-reactant contained in the process or production with a suitable co-reactant that is present during the process or production, wherein the titanium-containing material comprises at least one of a fine-grained, natural titanium-containing material or a fine. grained TiO-rich slag.