Titanium concentrate is extracted from ilmenite or titanomagnetite through smelting and processing. It is black-gray, powdery, and metallic. The main components are titanium dioxide, iron trioxide, iron oxide, and a small amount of phosphorus, sulfur, magnesium, and calcium. It is a raw material for the production of titanium dioxide for a wide range of uses, and is also used in metallic titanium (sponge titanium), titanium-containing steel and electrode coatings.
Titanium: element symbol Ti, atomic number 22, atomic weight 47.88, located in the fourth period IVB group in the periodic table. Titanium is one of the elements with wide distribution and high abundance (6320×10-6) in the earth's crust. It accounts for 0.61% of the weight of the earth's crust and ranks 9th; while titanium resources are second only to iron, aluminum, and magnesium. The 4th position is an important raw material for the preparation of titanium slag, artificial rutile, titanium white, titanium sponge, titanium metal, titanium materials, and electrode coatings.
Because metallic titanium is silver-white, it has a high melting point (1727℃), light specific gravity (4.5), high mechanical strength (5), low temperature resistance (resistivity almost 0 at ultra-low temperature), abrasion resistance, and good plasticity of linear titanium. Thin-walled use), not easy to oxidize, strong reduction, etc.; titanium oxide-titanium dioxide (titanium dioxide), has good physical and chemical stability (not melted in any acid or alkali after 1000 ℃ calcination), refractive index High (2.55～2.70), and strong whiteness, tinting power (1150～1650), hiding power (40～50g/m2), temperature resistance, anti-chalking and other characteristics, known as the "king of pigments" .
Therefore, titanium and its oxides and alloy products are important coatings, new structural materials, and anti-corrosion materials. They are hailed as "the third metal in development after iron and aluminum" and "strategic metal", and they are also "very promising." "Metal materials" have a wide range of applications in aviation, aerospace, ships, military industry, metallurgy, chemical industry, machinery, electric power, seawater desalination, transportation, light industry, environmental protection, medical equipment and other fields, and have created a huge economy Benefits and social benefits have an important position and role in the development of the national economy.